{"id":189384,"date":"2024-11-12T07:18:20","date_gmt":"2024-11-11T23:18:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189384\/"},"modified":"2024-11-12T07:18:21","modified_gmt":"2024-11-11T23:18:21","slug":"%e7%b5%b1%e8%a8%88%e4%b8%80%e5%80%8b%e8%a1%a8%e7%9a%84%e6%95%b8%e6%93%9a%e9%87%8f%e6%98%af%e6%80%8e%e9%ba%bc%e7%94%9f%e6%88%90%e7%9a%84%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189384\/","title":{"rendered":"\u7d71\u8a08\u4e00\u500b\u8868\u7684\u6578\u64da\u91cf\u662f\u600e\u9ebc\u751f\u6210\u7684\uff1f"},"content":{"rendered":"<h1 id=\"%e7%b5%b1%e8%a8%88%e4%b8%80%e5%80%8b%e8%a1%a8%e7%9a%84%e6%95%b8%e6%93%9a%e9%87%8f%e6%98%af%e6%80%8e%e9%ba%bc%e7%94%9f%e6%88%90%e7%9a%84%ef%bc%9f-emhRDwaLxB\">\u7d71\u8a08\u4e00\u500b\u8868\u7684\u6578\u64da\u91cf\u662f\u600e\u9ebc\u751f\u6210\u7684\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5206\u6790\u548c\u6578\u64da\u79d1\u5b78\u7684\u9818\u57df\u4e2d\uff0c\u7d71\u8a08\u8868\u662f\u4e00\u500b\u91cd\u8981\u7684\u5de5\u5177\uff0c\u7528\u65bc\u5c55\u793a\u548c\u5206\u6790\u6578\u64da\u3002\u9019\u4e9b\u8868\u683c\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u6211\u5011\u7406\u89e3\u6578\u64da\u7684\u5206\u4f48\u60c5\u6cc1\uff0c\u9084\u80fd\u5920\u63ed\u793a\u6578\u64da\u4e4b\u9593\u7684\u95dc\u4fc2\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u7d71\u8a08\u4e00\u500b\u8868\u7684\u6578\u64da\u91cf\u662f\u5982\u4f55\u751f\u6210\u7684\uff0c\u4e26\u4ecb\u7d39\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\u548c\u6280\u8853\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e7%9a%84%e6%94%b6%e9%9b%86-emhRDwaLxB\">\u6578\u64da\u7684\u6536\u96c6<\/h2>\n<p>\u751f\u6210\u7d71\u8a08\u8868\u7684\u7b2c\u4e00\u6b65\u662f\u6578\u64da\u7684\u6536\u96c6\u3002\u6578\u64da\u53ef\u4ee5\u4f86\u81ea\u591a\u7a2e\u4f86\u6e90\uff0c\u5305\u62ec\u554f\u5377\u8abf\u67e5\u3001\u5be6\u9a57\u7d50\u679c\u3001\u89c0\u5bdf\u8a18\u9304\u4ee5\u53ca\u73fe\u6709\u7684\u6578\u64da\u5eab\u3002\u6536\u96c6\u6578\u64da\u6642\uff0c\u61c9\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u8981\u7d20\uff1a<\/p>\n<ul>\n<li><strong>\u6578\u64da\u7684\u6e96\u78ba\u6027\uff1a<\/strong>\u78ba\u4fdd\u6240\u6536\u96c6\u7684\u6578\u64da\u662f\u6e96\u78ba\u548c\u53ef\u9760\u7684\uff0c\u9019\u5c0d\u65bc\u5f8c\u7e8c\u7684\u5206\u6790\u81f3\u95dc\u91cd\u8981\u3002<\/li>\n<li><strong>\u6578\u64da\u7684\u5b8c\u6574\u6027\uff1a<\/strong>\u6536\u96c6\u7684\u6578\u64da\u61c9\u8a72\u6db5\u84cb\u6240\u6709\u76f8\u95dc\u7684\u8b8a\u91cf\uff0c\u4ee5\u4fbf\u9032\u884c\u5168\u9762\u7684\u5206\u6790\u3002<\/li>\n<li><strong>\u6578\u64da\u7684\u4ee3\u8868\u6027\uff1a<\/strong>\u6240\u6536\u96c6\u7684\u6a23\u672c\u61c9\u8a72\u80fd\u5920\u4ee3\u8868\u6574\u9ad4\uff0c\u4ee5\u907f\u514d\u504f\u5dee\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%95%b8%e6%93%9a%e7%9a%84%e6%95%b4%e7%90%86-emhRDwaLxB\">\u6578\u64da\u7684\u6574\u7406<\/h2>\n<p>\u5728\u6578\u64da\u6536\u96c6\u5b8c\u6210\u5f8c\uff0c\u4e0b\u4e00\u6b65\u662f\u5c0d\u6578\u64da\u9032\u884c\u6574\u7406\u3002\u9019\u901a\u5e38\u5305\u62ec\u6578\u64da\u6e05\u7406\u548c\u6578\u64da\u8f49\u63db\u3002\u6578\u64da\u6e05\u7406\u7684\u904e\u7a0b\u4e2d\uff0c\u6703\u53bb\u9664\u91cd\u8907\u7684\u6578\u64da\u3001\u586b\u88dc\u7f3a\u5931\u503c\u4ee5\u53ca\u4fee\u6b63\u932f\u8aa4\u7684\u6578\u64da\u3002\u6578\u64da\u8f49\u63db\u5247\u662f\u5c07\u6578\u64da\u8f49\u63db\u70ba\u9069\u5408\u5206\u6790\u7684\u683c\u5f0f\uff0c\u4f8b\u5982\u5c07\u985e\u5225\u8b8a\u91cf\u8f49\u63db\u70ba\u6578\u503c\u8b8a\u91cf\u3002<\/p>\n<h3 id=\"%e6%95%b8%e6%93%9a%e6%b8%85%e7%90%86%e7%9a%84%e7%a4%ba%e4%be%8b-emhRDwaLxB\">\u6578\u64da\u6e05\u7406\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n# \u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u6578\u64da\u6846 df\nimport pandas as pd\n\n# \u53bb\u9664\u91cd\u8907\u7684\u884c\ndf = df.drop_duplicates()\n\n# \u586b\u88dc\u7f3a\u5931\u503c\ndf['column_name'].fillna(value='default_value', inplace=True)\n<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e7%9a%84%e5%88%86%e6%9e%90-emhRDwaLxB\">\u6578\u64da\u7684\u5206\u6790<\/h2>\n<p>\u6578\u64da\u6574\u7406\u5b8c\u6210\u5f8c\uff0c\u63a5\u4e0b\u4f86\u662f\u6578\u64da\u7684\u5206\u6790\u3002\u9019\u4e00\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u5230\u7d71\u8a08\u65b9\u6cd5\u7684\u61c9\u7528\uff0c\u4f8b\u5982\u63cf\u8ff0\u6027\u7d71\u8a08\u3001\u63a8\u8ad6\u7d71\u8a08\u7b49\u3002\u63cf\u8ff0\u6027\u7d71\u8a08\u7528\u65bc\u7e3d\u7d50\u6578\u64da\u7684\u7279\u5fb5\uff0c\u4f8b\u5982\u8a08\u7b97\u5e73\u5747\u503c\u3001\u4e2d\u4f4d\u6578\u3001\u6a19\u6e96\u5dee\u7b49\uff1b\u800c\u63a8\u8ad6\u7d71\u8a08\u5247\u7528\u65bc\u5f9e\u6a23\u672c\u6578\u64da\u63a8\u65b7\u6574\u9ad4\u7279\u5fb5\uff0c\u4f8b\u5982\u5047\u8a2d\u6aa2\u9a57\u548c\u7f6e\u4fe1\u5340\u9593\u3002<\/p>\n<h3 id=\"%e6%8f%8f%e8%bf%b0%e6%80%a7%e7%b5%b1%e8%a8%88%e7%9a%84%e7%a4%ba%e4%be%8b-emhRDwaLxB\">\u63cf\u8ff0\u6027\u7d71\u8a08\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n# \u8a08\u7b97\u63cf\u8ff0\u6027\u7d71\u8a08\nsummary = df.describe()\nprint(summary)\n<\/code><\/pre>\n<h2 id=\"%e7%94%9f%e6%88%90%e7%b5%b1%e8%a8%88%e8%a1%a8-emhRDwaLxB\">\u751f\u6210\u7d71\u8a08\u8868<\/h2>\n<p>\u5728\u5b8c\u6210\u6578\u64da\u5206\u6790\u5f8c\uff0c\u6700\u5f8c\u4e00\u6b65\u662f\u751f\u6210\u7d71\u8a08\u8868\u3002\u9019\u4e9b\u8868\u683c\u53ef\u4ee5\u4f7f\u7528\u5404\u7a2e\u5de5\u5177\u548c\u8edf\u4ef6\u751f\u6210\uff0c\u4f8b\u5982 Excel\u3001R \u8a9e\u8a00\u3001Python \u7684 Pandas \u5eab\u7b49\u3002\u751f\u6210\u7684\u7d71\u8a08\u8868\u61c9\u8a72\u6e05\u6670\u6613\u61c2\uff0c\u4e26\u80fd\u5920\u6709\u6548\u5730\u50b3\u9054\u6578\u64da\u7684\u95dc\u9375\u4fe1\u606f\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8-pandas-%e7%94%9f%e6%88%90%e7%b5%b1%e8%a8%88%e8%a1%a8%e7%9a%84%e7%a4%ba%e4%be%8b-emhRDwaLxB\">\u4f7f\u7528 Pandas \u751f\u6210\u7d71\u8a08\u8868\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n# \u4f7f\u7528 Pandas \u751f\u6210\u7d71\u8a08\u8868\ntable = df.groupby('category_column').agg({'value_column': ['mean', 'sum', 'count']})\nprint(table)\n<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-emhRDwaLxB\">\u7d50\u8ad6<\/h2>\n<p>\u7d71\u8a08\u4e00\u500b\u8868\u7684\u6578\u64da\u91cf\u751f\u6210\u904e\u7a0b\u5305\u62ec\u6578\u64da\u7684\u6536\u96c6\u3001\u6574\u7406\u3001\u5206\u6790\u548c\u6700\u7d42\u7684\u8868\u683c\u751f\u6210\u3002\u6bcf\u4e00\u500b\u6b65\u9a5f\u90fd\u81f3\u95dc\u91cd\u8981\uff0c\u78ba\u4fdd\u4e86\u6700\u7d42\u7d50\u679c\u7684\u6e96\u78ba\u6027\u548c\u53ef\u9760\u6027\u3002\u96a8\u8457\u6578\u64da\u79d1\u5b78\u7684\u767c\u5c55\uff0c\u638c\u63e1\u9019\u4e9b\u6280\u80fd\u5c07\u5c0d\u65bc\u4efb\u4f55\u5e0c\u671b\u5728\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\u53d6\u5f97\u6210\u529f\u7684\u4eba\u4f86\u8aaa\u90fd\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u4f7f\u7528 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u9032\u884c\u6578\u64da\u5206\u6790\u6216\u5b58\u5132\u6709\u8208\u8da3\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u7d71\u8a08\u4e00\u500b\u8868\u7684\u6578\u64da\u91cf\u751f\u6210\u904e\u7a0b\uff0c\u63a2\u7d22\u6578\u64da\u6536\u96c6\u3001\u8655\u7406\u53ca\u5206\u6790\u7684\u95dc\u9375\u6b65\u9a5f\u8207\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-189384","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189384","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=189384"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189384\/revisions"}],"predecessor-version":[{"id":189385,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189384\/revisions\/189385"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189384"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189384"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}