{"id":199691,"date":"2025-05-06T08:47:06","date_gmt":"2025-05-06T00:47:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199691\/"},"modified":"2025-05-06T08:47:06","modified_gmt":"2025-05-06T00:47:06","slug":"%e6%8c%89%e7%85%a7%e5%a4%9a%e4%b8%aa%e5%ad%97%e6%ae%b5%e7%9a%84%e9%a1%ba%e5%ba%8f%e8%bf%9b%e8%a1%8c%e5%88%86%e7%bb%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199691\/","title":{"rendered":"\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4"},"content":{"rendered":"

<\/b> <\/p>\n

\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4<\/h1>\n

\u5728IT\u884c\u4e1a\u8fd9\u4e2a\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u5f88\u5feb\u7684\u884c\u4e1a\uff0c\u53ea\u6709\u4e0d\u505c\u6b62\u7684\u5b66\u4e60\uff0c\u624d\u4e0d\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u5982\u679c\u4f60\u662f\u6570\u636e\u5e93\u5b66\u4e60\u8005\uff0c\u90a3\u4e48\u672c\u6587\u300a\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4\u300b\u5c31\u5f88\u9002\u5408\u4f60\uff01\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5305\u62ec##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

groupby\u591a\u4e2a\u5b57\u6bb5\u5148\u540e\u987a\u5e8f\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n

\u5728\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u4e2d\uff0c\u5e38\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\uff0c\u5e76\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u5148\u540e\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4\u64cd\u4f5c\u3002\u4eca\u5929\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528Python\u4e2d\u7684pandas\u5e93\u6765\u5b9e\u73b0\u591a\u5b57\u6bb5\u7684groupby\u64cd\u4f5c\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u5b89\u88c5\u5e76\u5bfc\u5165pandas\u5e93\uff0c\u4ee5\u53ca\u52a0\u8f7d\u6211\u4eec\u8981\u5904\u7406\u7684\u6570\u636e\u3002\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u9500\u552e\u8ba2\u5355\u7684\u6570\u636e\u96c6\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u8ba2\u5355\u53f7(order_id)\u3001\u4ea7\u54c1\u540d\u79f0(product_name)\u3001\u5ba2\u6237\u540d\u79f0(customer_name)\u548c\u9500\u552e\u989d(sales)\u7b49\u5b57\u6bb5\u3002<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u5148\u6765\u4e86\u89e3\u4e00\u4e0bgroupby\u7684\u57fa\u672c\u4f7f\u7528\u65b9\u6cd5\u3002groupby\u51fd\u6570\u53ef\u4ee5\u6839\u636e\u6307\u5b9a\u7684\u5b57\u6bb5\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\uff0c\u8fd4\u56de\u4e00\u4e2aGroupBy\u5bf9\u8c61\u3002\u6211\u4eec\u53ef\u4ee5\u8fdb\u4e00\u6b65\u5bf9GroupBy\u5bf9\u8c61\u8fdb\u884c\u4e00\u7cfb\u5217\u7684\u64cd\u4f5c\uff0c\u5982\u805a\u5408\u8ba1\u7b97\u3001\u7b5b\u9009\u6570\u636e\u7b49\u3002<\/p>\n

import pandas as pd\n\n# \u52a0\u8f7d\u6570\u636e\ndata = pd.read_csv('sales_order.csv')\n\n# \u6839\u636e\"order_id\"\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\ngrouped = data.groupby('order_id')\n\n# \u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u6c42\u548c\u64cd\u4f5c\nresult = grouped.sum()\n\nprint(result)<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u4f7f\u7528pd.read_csv<\/code>\u51fd\u6570\u52a0\u8f7d\u4e86\u4e00\u4e2a\u540d\u4e3a”sales_order.csv”\u7684csv\u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528groupby<\/code>\u51fd\u6570\u6839\u636e”order_id”\u5b57\u6bb5\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u3002\u63a5\u7740\uff0c\u5229\u7528sum<\/code>\u51fd\u6570\u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u6c42\u548c\u64cd\u4f5c\uff0c\u5f97\u5230\u4e86\u6700\u7ec8\u7684\u7ed3\u679c\u3002<\/p>\n
\u7136\u800c\uff0c\u6709\u65f6\u6211\u4eec\u9700\u8981\u6839\u636e\u591a\u4e2a\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\u64cd\u4f5c\uff0c\u5373\u6309\u7167\u5148\u540e\u987a\u5e8f\u8fdb\u884c\u591a\u7ea7\u5206\u7ec4\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u4eec\u53ef\u4ee5\u501f\u52a9\u591a\u6b21\u8c03\u7528groupby<\/code>\u51fd\u6570\u6765\u5b8c\u6210\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6211\u4eec\u5c06\u540c\u65f6\u6309\u7167”order_id”\u548c”product_name”\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\u64cd\u4f5c\uff1a<\/p>\n
# \u6839\u636e\"order_id\"\u548c\"product_name\"\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\ngrouped = data.groupby(['order_id', 'product_name'])\n\n# \u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u6c42\u548c\u64cd\u4f5c\nresult = grouped.sum()\n\nprint(result)<\/pre>\n
\u901a\u8fc7\u5c06\u8981\u5206\u7ec4\u7684\u5b57\u6bb5\u540d\u4f5c\u4e3a\u4e00\u4e2a\u5217\u8868\u4f20\u9012\u7ed9groupby<\/code>\u51fd\u6570\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5b9e\u73b0\u591a\u5b57\u6bb5\u7684\u5206\u7ec4\u64cd\u4f5c\u3002\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u6839\u636e”order_id”\u548c”product_name”\u5b57\u6bb5\u8fdb\u884c\u4e86\u5206\u7ec4\uff0c\u5e76\u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u4e86\u6c42\u548c\u64cd\u4f5c\u3002<\/p>\n
\u6b64\u5916\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u5b57\u6bb5\u6307\u5b9a\u4e0d\u540c\u7684\u5206\u7ec4\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u6309\u7167”order_id”\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u518d\u6309\u7167”product_name”\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u6b64\u65f6\u9700\u8981\u5148\u540e\u8c03\u7528\u4e24\u6b21groupby<\/code>\u51fd\u6570\u3002<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u6211\u4eec\u9996\u5148\u6839\u636e”order_id”\u5b57\u6bb5\u5206\u7ec4\uff0c\u7136\u540e\u518d\u6839\u636e”product_name”\u5b57\u6bb5\u5206\u7ec4\uff1a<\/p>\n
# \u6839\u636e\"order_id\"\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\ngrouped = data.groupby('order_id')\n\n# \u6839\u636e\"product_name\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\nresult = grouped.groupby('product_name').sum()\n\nprint(result)<\/pre>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u5148\u540e\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4\u64cd\u4f5c\uff0c\u5e76\u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u805a\u5408\u8ba1\u7b97\u3002\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u9996\u5148\u6839\u636e”order_id”\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u7136\u540e\u5728\u6bcf\u7ec4\u6570\u636e\u7684\u57fa\u7840\u4e0a\u518d\u6839\u636e”product_name”\u5b57\u6bb5\u8fdb\u884c\u5206\u7ec4\uff0c\u6700\u540e\u5bf9\u6bcf\u7ec4\u6570\u636e\u8fdb\u884c\u6c42\u548c\u64cd\u4f5c\u3002<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528pandas\u5e93\u4e2d\u7684groupby\u51fd\u6570\u6765\u5b9e\u73b0\u591a\u5b57\u6bb5\u7684\u5206\u7ec4\u64cd\u4f5c\u3002\u65e0\u8bba\u662f\u5355\u4e00\u5b57\u6bb5\u7684\u5206\u7ec4\uff0c\u8fd8\u662f\u591a\u4e2a\u5b57\u6bb5\u7684\u5148\u540e\u987a\u5e8f\u5206\u7ec4\uff0c\u6211\u4eec\u90fd\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u4ee3\u7801\u5b9e\u73b0\u3002\u8fd9\u5c06\u6781\u5927\u5730\u65b9\u4fbf\u6211\u4eec\u5728\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u4e2d\u7684\u5de5\u4f5c\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u6309\u7167\u591a\u4e2a\u5b57\u6bb5\u7684\u987a\u5e8f\u8fdb\u884c\u5206\u7ec4 \u5728I...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199691","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199691","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199691"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199691\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}