{"id":107594,"date":"2026-09-19T21:25:10","date_gmt":"2026-09-19T13:25:10","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/107594.html"},"modified":"2026-09-19T21:25:10","modified_gmt":"2026-09-19T13:25:10","slug":"%e8%ae%a1%e7%ae%97%e6%9c%ba%e6%af%95%e4%b8%9a%e8%ae%be%e8%ae%a1%e9%80%89%e9%a2%98%e6%8e%a8%e8%8d%90%e5%9f%ba%e4%ba%8e%e5%a4%a7%e6%95%b0%e6%8d%ae%e7%9a%84%e5%9f%8e%e5%b8%82%e5%99%aa%e9%9f%b3%e6%95%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/107594.html","title":{"rendered":"\u8ba1\u7b97\u673a\u6bd5\u4e1a\u8bbe\u8ba1\u9009\u9898\u63a8\u8350:\u57fa\u4e8e\u5927\u6570\u636e\u7684\u57ce\u5e02\u566a\u97f3\u6570\u636e\u5206\u6790\u4e0e\u53ef\u89c6\u5316|\u6bd5\u4e1a\u8bbe\u8ba1\u9009\u9898|\u8ba1\u7b97\u673a\u6bd5\u8bbe|\u9009\u9898\u63a8\u8350|\u6bd5\u8bbe\u6307\u5bfc|\u9879\u76ee\u5b9a\u5236|\u6e90\u7801|\u9ad8\u8d28\u91cf\u9879\u76ee"},"content":{"rendered":"<p>\u2728\u4f5c\u8005\u4e3b\u9875&#xff1a;IT\u6bd5\u8bbe\u68a6\u5de5\u5382\u2728 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\u5f00\u53d1\u8bed\u8a00&#xff1a;Python&#043;Java&#xff08;\u4e24\u4e2a\u7248\u672c\u90fd\u652f\u6301&#xff09; \u540e\u7aef\u6846\u67b6&#xff1a;Django&#043;Spring Boot(Spring&#043;SpringMVC&#043;Mybatis)&#xff08;\u4e24\u4e2a\u7248\u672c\u90fd\u652f\u6301&#xff09; \u524d\u7aef&#xff1a;Vue&#043;ElementUI&#043;Echarts&#043;HTML&#043;CSS&#043;JavaScript&#043;jQuery \u8be6\u7ec6\u6280\u672f\u70b9&#xff1a;Hadoop\u3001HDFS\u3001Spark\u3001Spark SQL\u3001Pandas\u3001NumPy \u6570\u636e\u5e93&#xff1a;MySQL<\/p>\n<h2>\u4e09\u3001\u7cfb\u7edf\u754c\u9762\u5c55\u793a<\/h2>\n<ul>\n<li>\u57fa\u4e8e\u5927\u6570\u636e\u7684\u57ce\u5e02\u566a\u97f3\u6570\u636e\u5206\u6790\u4e0e\u53ef\u89c6\u5316\u7cfb\u7edf\u754c\u9762\u5c55\u793a&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919132503-6aae8d2f39b1e.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\/20260919132504-6aae8d303c5ee.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\/20260919132504-6aae8d30d5b32.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\/20260919132505-6aae8d3178b5a.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\/20260919132506-6aae8d32174b8.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\/20260919132506-6aae8d32b30e5.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\/20260919132507-6aae8d334d37c.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\/20260919132507-6aae8d33e00fe.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\/20260919132508-6aae8d3480e17.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\/20260919132509-6aae8d352bc81.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/li>\n<\/ul>\n<h2>\u56db\u3001\u90e8\u5206\u4ee3\u7801\u8bbe\u8ba1<\/h2>\n<ul>\n<li>\u9879\u76ee\u5b9e\u6218-\u4ee3\u7801\u53c2\u8003&#xff1a;<\/li>\n<\/ul>\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> <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">min<\/span><span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">,<\/span> when<span class=\"token punctuation\">,<\/span> hour<span class=\"token punctuation\">,<\/span> date_format<\/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;CityNoiseAnalysis&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>master<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;local[*]&#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 keyword\">def<\/span> <span class=\"token function\">time_space_analysis<\/span><span class=\"token punctuation\">(<\/span>noise_df<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> noise_df<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hour&#034;<\/span><span class=\"token punctuation\">,<\/span> hour<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;collect_time&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;day&#034;<\/span><span class=\"token punctuation\">,<\/span> date_format<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;collect_time&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;yyyy-MM-dd&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;day&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;hour&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span><br \/>\n        avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_noise&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;max_noise&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token builtin\">min<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;min_noise&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        count<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_id&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;record_count&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><br \/>\n        <span class=\"token string\">&#034;noise_level&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_noise&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u5b89\u9759&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_noise&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">60<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u8f83\u5b89\u9759&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_noise&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4e00\u822c&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_noise&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">80<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u8f83\u5435&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>otherwise<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f88\u5435&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;day&#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> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hour&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>asc<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result<span class=\"token punctuation\">.<\/span>write<span class=\"token punctuation\">.<\/span>mode<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;overwrite&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>option<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;header&#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>csv<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/output\/time_space_analysis&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> result<\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">intensity_grade_analysis<\/span><span class=\"token punctuation\">(<\/span>noise_df<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> noise_df<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><br \/>\n        <span class=\"token string\">&#034;grade&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4e00\u7ea7&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">60<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4e8c\u7ea7&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4e09\u7ea7&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">80<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u56db\u7ea7&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>otherwise<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e94\u7ea7&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><br \/>\n    grade_count <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;grade&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span><br \/>\n        count<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_id&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade_avg&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><br \/>\n    total_count <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span>count<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_id&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;total_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> grade_count<span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>total_count<span class=\"token punctuation\">,<\/span> on<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">,<\/span> how<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;left&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade_ratio&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade_count&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;total_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade_ratio&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade_ratio&#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    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>asc<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;grade&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>asc<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result<span class=\"token punctuation\">.<\/span>write<span class=\"token punctuation\">.<\/span>mode<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;overwrite&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>option<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;header&#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>csv<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/output\/intensity_grade_analysis&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> result<\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">source_analysis<\/span><span class=\"token punctuation\">(<\/span>noise_df<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> noise_df<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;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>isNotNull<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    df <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><br \/>\n        <span class=\"token string\">&#034;source_type&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">80<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u4ea4\u901a\u566a\u58f0&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u65bd\u5de5\u566a\u58f0&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">60<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u5546\u4e1a\u566a\u58f0&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u751f\u6d3b\u566a\u58f0&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>otherwise<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5176\u4ed6\u566a\u58f0&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> df<span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;source_type&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span><br \/>\n        count<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_id&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_avg&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token builtin\">max<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;noise_value&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_max&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_ratio&#034;<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_count&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_count&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    result <span class=\"token operator\">&#061;<\/span> result<span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;district&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>asc<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;source_count&#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><br \/>\n    result<span class=\"token punctuation\">.<\/span>write<span class=\"token punctuation\">.<\/span>mode<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;overwrite&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>option<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;header&#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>csv<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\/output\/source_analysis&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> 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