{"id":99448,"date":"2026-09-02T15:57:22","date_gmt":"2026-09-02T07:57:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/99448.html"},"modified":"2026-09-02T15:57:22","modified_gmt":"2026-09-02T07:57:22","slug":"%e3%80%90%e7%b2%be%e5%93%81%e5%a4%a7%e6%95%b0%e6%8d%ae%e9%a1%b9%e7%9b%ae%e3%80%91%e5%9f%ba%e4%ba%8e%e5%a4%a7%e6%95%b0%e6%8d%ae%e7%9a%84%e8%82%a1%e7%a5%a8%e5%8e%86%e5%8f%b2%e8%a1%8c%e6%83%85%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/99448.html","title":{"rendered":"\u3010\u7cbe\u54c1\u5927\u6570\u636e\u9879\u76ee\u3011\u57fa\u4e8e\u5927\u6570\u636e\u7684\u80a1\u7968\u5386\u53f2\u884c\u60c5\u6570\u636e\u5206\u6790\u4e0e\u53ef\u89c6\u5316\uff0c\u9644\u6e90\u7801_\u6570\u636e\u53ef\u89c6\u5316_\u6570\u636e\u5206\u6790_\u6bd5\u8bbe\u9009\u9898_SPark_\u5927\u6570\u636e\u9879\u76ee_\u6587\u6863\u6307\u5bfc"},"content":{"rendered":"<p>&#x1f496;&#x1f496;\u4f5c\u8005&#xff1a;\u8ba1\u7b97\u673a\u6bd5\u4e1a\u8bbe\u8ba1\u6770\u745e 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decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075718-6a97d6dedffbf.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075719-6a97d6df4e535.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075719-6a97d6dfa1df8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075720-6a97d6e003ab5.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075720-6a97d6e05ca27.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075720-6a97d6e0b6173.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075721-6a97d6e11985a.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902075721-6a97d6e17d4e3.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h2>\u57fa\u4e8e\u5927\u6570\u636e\u7684\u80a1\u7968\u5386\u53f2\u884c\u60c5\u6570\u636e\u5206\u6790\u4e0e\u53ef\u89c6\u5316\u4ee3\u7801\u5c55\u793a<\/h2>\n<p><span class=\"token keyword\">from<\/span> pyspark<span class=\"token punctuation\">.<\/span>sql <span class=\"token keyword\">import<\/span> SparkSession<br \/>\n<span class=\"token keyword\">from<\/span> pyspark<span class=\"token punctuation\">.<\/span>sql<span class=\"token punctuation\">.<\/span>functions <span class=\"token keyword\">import<\/span> col<span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">,<\/span> stddev<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">max<\/span> <span class=\"token keyword\">as<\/span> spark_max<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">min<\/span> <span class=\"token keyword\">as<\/span> spark_min<span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">sum<\/span> <span class=\"token keyword\">as<\/span> spark_sum<span class=\"token punctuation\">,<\/span> date_format<span class=\"token punctuation\">,<\/span> when<span class=\"token punctuation\">,<\/span> row_number<br \/>\n<span class=\"token keyword\">from<\/span> pyspark<span class=\"token punctuation\">.<\/span>sql<span class=\"token punctuation\">.<\/span>window <span class=\"token keyword\">import<\/span> Window<br \/>\n<span class=\"token keyword\">from<\/span> pyspark<span class=\"token punctuation\">.<\/span>sql<span class=\"token punctuation\">.<\/span>types <span class=\"token keyword\">import<\/span> DateType<span class=\"token punctuation\">,<\/span> DoubleType<span class=\"token punctuation\">,<\/span> StringType<br \/>\n<span class=\"token keyword\">import<\/span> pandas <span class=\"token keyword\">as<\/span> pd<\/p>\n<p>spark <span class=\"token operator\">&#061;<\/span> SparkSession<span class=\"token punctuation\">.<\/span>builder<span class=\"token punctuation\">.<\/span>appName<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;StockHistoryAnalysis&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;spark.sql.adaptive.enabled&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;true&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;spark.sql.adaptive.coalescePartitions.enabled&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;true&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getOrCreate<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u529f\u80fd\u4e00&#xff1a;\u5e02\u573a\u884c\u60c5\u5206\u6790&#xff08;\u6838\u5fc3\u5904\u7406\u51fd\u6570&#xff09;<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">analyze_market_overview<\/span><span class=\"token punctuation\">(<\/span>start_date<span class=\"token punctuation\">,<\/span> end_date<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> spark<span class=\"token punctuation\">.<\/span>read<span class=\"token punctuation\">.<\/span>parquet<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hdfs:\/\/namenode:9000\/stock_data\/*.parquet&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_filtered <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> start_date<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&#061;<\/span> end_date<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_filtered <span class=\"token operator\">&#061;<\/span> df_filtered<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;year_month&#034;<\/span><span class=\"token punctuation\">,<\/span> date_format<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;yyyy-MM&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    daily_agg <span class=\"token operator\">&#061;<\/span> df_filtered<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span>avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;volume&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_volume&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;active_stocks&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    monthly_agg <span class=\"token operator\">&#061;<\/span> df_filtered<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;year_month&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span>avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;month_avg&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> spark_max<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;month_high&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> spark_min<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;month_low&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    window_spec <span class=\"token operator\">&#061;<\/span> Window<span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>rowsBetween<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    daily_agg <span class=\"token operator\">&#061;<\/span> daily_agg<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ma_5&#034;<\/span><span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>window_spec<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> daily_agg<span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>strftime<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%Y-%m-%d&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;avg_close&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;avg_close&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;avg_volume&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;avg_volume&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;active_stocks&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;active_stocks&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;ma_5&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;ma_5&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">if<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;ma_5&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span> row <span class=\"token keyword\">in<\/span> result<span class=\"token punctuation\">]<\/span><br \/>\n    result_month <span class=\"token operator\">&#061;<\/span> monthly_agg<span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result_month_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;year_month&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;year_month&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;month_avg&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;month_avg&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;month_high&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;month_high&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;month_low&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;month_low&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span> row <span class=\"token keyword\">in<\/span> result_month<span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;daily_data&#034;<\/span><span class=\"token punctuation\">:<\/span> result_list<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;monthly_data&#034;<\/span><span class=\"token punctuation\">:<\/span> result_month_list<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\"># \u529f\u80fd\u4e8c&#xff1a;\u4e2a\u80a1\u8868\u73b0\u5206\u6790&#xff08;\u6838\u5fc3\u5904\u7406\u51fd\u6570&#xff09;<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">analyze_stock_performance<\/span><span class=\"token punctuation\">(<\/span>symbol<span class=\"token punctuation\">,<\/span> start_date<span class=\"token punctuation\">,<\/span> end_date<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> spark<span class=\"token punctuation\">.<\/span>read<span class=\"token punctuation\">.<\/span>parquet<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hdfs:\/\/namenode:9000\/stock_data\/*.parquet&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> symbol<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> start_date<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&#061;<\/span> end_date<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;open&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;open&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;price_range&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;high&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;low&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;turnover&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;volume&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;shares_outstanding&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    window_spec <span class=\"token operator\">&#061;<\/span> Window<span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>rowsBetween<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ma_20&#034;<\/span><span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>window_spec<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;std_20&#034;<\/span><span class=\"token punctuation\">,<\/span> stddev<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>window_spec<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;boll_upper&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ma_20&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;std_20&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_stock <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;boll_lower&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ma_20&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">*<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;std_20&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    agg_result <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span>avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_price&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> spark_max<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;max_price&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> spark_min<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;min_price&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;volume&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_volume&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_return&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> stddev<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;volatility&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    detail_result <span class=\"token operator\">&#061;<\/span> df_stock<span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    detail_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>strftime<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%Y-%m-%d&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;open&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;open&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;high&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;high&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;low&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;low&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;volume&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;volume&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;price_range&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;price_range&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;turnover&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;turnover&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;ma_20&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;ma_20&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">if<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;ma_20&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;boll_upper&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;boll_upper&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">if<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;boll_upper&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;boll_lower&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;boll_lower&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">if<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;boll_lower&#034;<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span> row <span class=\"token keyword\">in<\/span> detail_result<span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">:<\/span> symbol<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;agg_stats&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;avg_price&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>agg_result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;avg_price&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;max_price&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>agg_result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;max_price&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;min_price&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>agg_result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;min_price&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;avg_volume&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>agg_result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;avg_volume&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;avg_return&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>agg_result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;avg_return&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;volatility&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>agg_result<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;volatility&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;detail_data&#034;<\/span><span class=\"token punctuation\">:<\/span> detail_list<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\"># \u529f\u80fd\u4e09&#xff1a;\u98ce\u9669\u6ce2\u52a8\u5206\u6790&#xff08;\u6838\u5fc3\u5904\u7406\u51fd\u6570&#xff09;<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">analyze_risk_volatility<\/span><span class=\"token punctuation\">(<\/span>start_date<span class=\"token punctuation\">,<\/span> end_date<span class=\"token punctuation\">,<\/span> window_days<span class=\"token operator\">&#061;<\/span><span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> spark<span class=\"token punctuation\">.<\/span>read<span class=\"token punctuation\">.<\/span>parquet<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hdfs:\/\/namenode:9000\/stock_data\/*.parquet&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_filtered <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> start_date<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&#061;<\/span> end_date<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_daily_return <span class=\"token operator\">&#061;<\/span> df_filtered<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;open&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;open&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    window_spec_stock <span class=\"token operator\">&#061;<\/span> Window<span class=\"token punctuation\">.<\/span>partitionBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>rowsBetween<span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token punctuation\">(<\/span>window_days<span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_risk <span class=\"token operator\">&#061;<\/span> df_daily_return<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">,<\/span> stddev<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;daily_return&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>window_spec_stock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_risk <span class=\"token operator\">&#061;<\/span> df_risk<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token punctuation\">,<\/span> spark_min<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span> spark_max<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>Window<span class=\"token punctuation\">.<\/span>partitionBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>rowsBetween<span class=\"token punctuation\">(<\/span>Window<span class=\"token punctuation\">.<\/span>unboundedPreceding<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> spark_max<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;close&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>Window<span class=\"token punctuation\">.<\/span>partitionBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>rowsBetween<span class=\"token punctuation\">(<\/span>Window<span class=\"token punctuation\">.<\/span>unboundedPreceding<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>over<span class=\"token punctuation\">(<\/span>window_spec_stock<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df_risk <span class=\"token operator\">&#061;<\/span> df_risk<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;date&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> end_date<span class=\"token punctuation\">)<\/span><br \/>\n    df_risk <span class=\"token operator\">&#061;<\/span> df_risk<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;risk_level&#034;<\/span><span class=\"token punctuation\">,<\/span> when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4f4e&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4e2d&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>otherwise<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u9ad8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    risk_by_sector <span class=\"token operator\">&#061;<\/span> df_risk<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;sector&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span>avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;sector_avg_volatility&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;sector_avg_drawdown&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;stock_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    high_risk_stocks <span class=\"token operator\">&#061;<\/span> df_risk<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;risk_level&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;\u9ad8&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>select<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>desc<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>limit<span class=\"token punctuation\">(<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    risk_result <span class=\"token operator\">&#061;<\/span> df_risk<span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    risk_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;sector&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;sector&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;risk_level&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;risk_level&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span> row <span class=\"token keyword\">in<\/span> risk_result<span class=\"token punctuation\">]<\/span><br \/>\n    sector_result <span class=\"token operator\">&#061;<\/span> risk_by_sector<span class=\"token punctuation\">.<\/span>collect<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    sector_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;sector&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;sector&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;sector_avg_volatility&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;sector_avg_volatility&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;sector_avg_drawdown&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;sector_avg_drawdown&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;stock_count&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;stock_count&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span> row <span class=\"token keyword\">in<\/span> sector_result<span class=\"token punctuation\">]<\/span><br \/>\n    high_risk_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">:<\/span> row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;symbol&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;rolling_volatility&#034;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span>row<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;rolling_max_drawdown&#034;<\/span><span class=\"token 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