{"id":981661,"date":"2024-12-27T07:04:26","date_gmt":"2024-12-26T23:04:26","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/981661.html"},"modified":"2024-12-27T07:04:29","modified_gmt":"2024-12-26T23:04:29","slug":"python%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e6%95%b0%e6%8d%ae%e5%a5%bd%e5%9d%8f","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/981661.html","title":{"rendered":"python\u5982\u4f55\u5224\u65ad\u6570\u636e\u597d\u574f"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24210508\/5aded85b-834b-4b11-8181-96d9258674e2.webp\" alt=\"python\u5982\u4f55\u5224\u65ad\u6570\u636e\u597d\u574f\" \/><\/p>\n<p><p> \u5f00\u5934\u6bb5\u843d\uff1a<br \/>\u5728Python\u4e2d\u5224\u65ad\u6570\u636e\u597d\u574f\u53ef\u4ee5\u901a\u8fc7<strong>\u6570\u636e\u6e05\u6d17\u3001\u7edf\u8ba1\u5206\u6790\u3001\u5f02\u5e38\u68c0\u6d4b\u3001\u6570\u636e\u53ef\u89c6\u5316<\/strong>\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u6570\u636e\u6e05\u6d17\u662f\u6700\u57fa\u7840\u4e5f\u662f\u6700\u91cd\u8981\u7684\u4e00\u6b65\uff0c\u5b83\u5305\u62ec\u53bb\u9664\u91cd\u590d\u6570\u636e\u3001\u5904\u7406\u7f3a\u5931\u503c\u3001\u8bc6\u522b\u548c\u7ea0\u6b63\u9519\u8bef\u6570\u636e\u3002\u6570\u636e\u6e05\u6d17\u7684\u8fc7\u7a0b\u80fd\u591f\u6709\u6548\u63d0\u5347\u6570\u636e\u8d28\u91cf\uff0c\u4e3a\u540e\u7eed\u7684\u5206\u6790\u548c\u5efa\u6a21\u63d0\u4f9b\u53ef\u9760\u7684\u57fa\u7840\u3002\u901a\u8fc7\u5229\u7528Python\u7684\u5e93\u5982Pandas\u3001NumPy\u7b49\uff0c\u80fd\u591f\u65b9\u4fbf\u5730\u6267\u884c\u8fd9\u4e9b\u64cd\u4f5c\u3002\u6570\u636e\u6e05\u6d17\u4e0d\u4ec5\u4ec5\u662f\u7b80\u5355\u7684\u53bb\u9664\u6216\u586b\u8865\u7f3a\u5931\u6570\u636e\uff0c\u5b83\u8fd8\u6d89\u53ca\u5230\u5bf9\u6570\u636e\u5206\u5e03\u7684\u7406\u89e3\u3001\u6570\u636e\u7c7b\u578b\u7684\u8f6c\u6362\u4ee5\u53ca\u6570\u636e\u4e00\u81f4\u6027\u7684\u7ef4\u62a4\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u6570\u636e\u6e05\u6d17<\/p>\n<\/p>\n<p><p>\u5728\u6570\u636e\u5206\u6790\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6570\u636e\u6e05\u6d17\u662f\u5224\u65ad\u6570\u636e\u597d\u574f\u7684\u9996\u8981\u6b65\u9aa4\uff0c\u5b83\u76f4\u63a5\u5f71\u54cd\u5230\u5206\u6790\u7ed3\u679c\u7684\u51c6\u786e\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n<\/p>\n<ol>\n<li>\u91cd\u590d\u6570\u636e\u5904\u7406<\/li>\n<\/ol>\n<p><p>\u5728\u6570\u636e\u96c6\u4e2d\uff0c\u91cd\u590d\u6570\u636e\u53ef\u80fd\u4f1a\u5bfc\u81f4\u9519\u8bef\u7684\u5206\u6790\u7ed3\u679c\u3002\u4f7f\u7528Python\u7684Pandas\u5e93\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u68c0\u6d4b\u548c\u5220\u9664\u91cd\u590d\u6570\u636e\u3002\u4f8b\u5982\uff0c<code>drop_duplicates()<\/code>\u51fd\u6570\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u8f7b\u677e\u53bb\u91cd\u3002\u53bb\u91cd\u65f6\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u786e\u4fdd\u6211\u4eec\u5220\u9664\u7684\u6570\u636e\u786e\u5b9e\u662f\u5197\u4f59\u7684\uff0c\u907f\u514d\u8bef\u5220\u91cd\u8981\u4fe1\u606f\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u5904\u7406\u7f3a\u5931\u503c<\/li>\n<\/ol>\n<p><p>\u7f3a\u5931\u503c\u5728\u6570\u636e\u96c6\u4e2d\u975e\u5e38\u5e38\u89c1\uff0c\u5b83\u4eec\u53ef\u80fd\u4f1a\u5f71\u54cd\u6a21\u578b\u7684\u6027\u80fd\u3002\u5904\u7406\u7f3a\u5931\u503c\u7684\u65b9\u6cd5\u5305\u62ec\u5220\u9664\u3001\u586b\u5145\u548c\u63d2\u503c\u7b49\u3002\u5728Pandas\u4e2d\uff0c<code>dropna()<\/code>\u53ef\u4ee5\u7528\u6765\u5220\u9664\u7f3a\u5931\u503c\uff0c\u800c<code>fillna()<\/code>\u53ef\u4ee5\u7528\u6765\u586b\u5145\u7f3a\u5931\u503c\u3002\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u5904\u7406\u7f3a\u5931\u503c\u9700\u8981\u7ed3\u5408\u5177\u4f53\u7684\u4e1a\u52a1\u9700\u6c42\u548c\u6570\u636e\u7279\u6027\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u7edf\u8ba1\u5206\u6790<\/p>\n<\/p>\n<p><p>\u901a\u8fc7\u7edf\u8ba1\u5206\u6790\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u6570\u636e\u4e2d\u7684\u5f02\u5e38\u503c\u548c\u9519\u8bef\u6570\u636e\uff0c\u4ece\u800c\u5224\u65ad\u6570\u636e\u7684\u597d\u574f\u3002<\/p>\n<\/p>\n<ol>\n<li>\u63cf\u8ff0\u6027\u7edf\u8ba1<\/li>\n<\/ol>\n<p><p>\u63cf\u8ff0\u6027\u7edf\u8ba1\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u4e86\u89e3\u6570\u636e\u7684\u57fa\u672c\u7279\u5f81\uff0c\u5982\u5e73\u5747\u503c\u3001\u4e2d\u4f4d\u6570\u3001\u6807\u51c6\u5dee\u7b49\u3002\u5728Pandas\u4e2d\uff0c<code>describe()<\/code>\u51fd\u6570\u53ef\u4ee5\u5feb\u901f\u751f\u6210\u6570\u636e\u7684\u7edf\u8ba1\u6982\u8981\u3002\u901a\u8fc7\u89c2\u5bdf\u8fd9\u4e9b\u6307\u6807\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u5f02\u5e38\u5927\u7684\u6216\u5f02\u5e38\u5c0f\u7684\u6570\u636e\u70b9\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u6570\u636e\u5206\u5e03\u5206\u6790<\/li>\n<\/ol>\n<p><p>\u5206\u6790\u6570\u636e\u7684\u5206\u5e03\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5224\u65ad\u6570\u636e\u7684\u6b63\u5e38\u6027\u3002\u4f8b\u5982\uff0c\u5229\u7528Matplotlib\u6216Seaborn\u5e93\u7ed8\u5236\u76f4\u65b9\u56fe\u3001\u7bb1\u7ebf\u56fe\u7b49\uff0c\u53ef\u4ee5\u76f4\u89c2\u5730\u67e5\u770b\u6570\u636e\u5206\u5e03\uff0c\u8bc6\u522b\u51fa\u53ef\u80fd\u7684\u5f02\u5e38\u503c\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u5f02\u5e38\u68c0\u6d4b<\/p>\n<\/p>\n<p><p>\u5f02\u5e38\u68c0\u6d4b\u662f\u5224\u65ad\u6570\u636e\u597d\u574f\u7684\u91cd\u8981\u6b65\u9aa4\uff0c\u901a\u8fc7\u8bc6\u522b\u548c\u5904\u7406\u5f02\u5e38\u503c\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u96c6\u7684\u8d28\u91cf\u3002<\/p>\n<\/p>\n<ol>\n<li>\u4f7f\u7528IQR\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p>IQR\uff08\u56db\u5206\u4f4d\u8ddd\uff09\u65b9\u6cd5\u662f\u4e00\u79cd\u5e38\u7528\u7684\u5f02\u5e38\u68c0\u6d4b\u65b9\u6cd5\u3002\u901a\u8fc7\u8ba1\u7b97\u6570\u636e\u7684\u7b2c\u4e00\u56db\u5206\u4f4d\u6570\uff08Q1\uff09\u548c\u7b2c\u4e09\u56db\u5206\u4f4d\u6570\uff08Q3\uff09\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u843d\u5728\u6b63\u5e38\u8303\u56f4\u4e4b\u5916\u7684\u6570\u636e\u70b9\u3002\u5728Pandas\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7<code>quantile()<\/code>\u51fd\u6570\u8ba1\u7b97\u8fd9\u4e9b\u503c\uff0c\u5e76\u5229\u7528\u5b83\u4eec\u6765\u7b5b\u9009\u51fa\u5f02\u5e38\u6570\u636e\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u4f7f\u7528Z-score\u65b9\u6cd5<\/li>\n<\/ol>\n<p><p>Z-score\u65b9\u6cd5\u901a\u8fc7\u8ba1\u7b97\u6570\u636e\u70b9\u4e0e\u5747\u503c\u7684\u504f\u79bb\u7a0b\u5ea6\u6765\u8bc6\u522b\u5f02\u5e38\u503c\u3002\u901a\u5e38\uff0cZ-score\u7edd\u5bf9\u503c\u5927\u4e8e3\u7684\u6570\u636e\u70b9\u88ab\u8ba4\u4e3a\u662f\u5f02\u5e38\u503c\u3002\u5229\u7528SciPy\u5e93\u4e2d\u7684<code>zscore<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8ba1\u7b97Z-score\u3002<\/p>\n<\/p>\n<p><p>\u56db\u3001\u6570\u636e\u53ef\u89c6\u5316<\/p>\n<\/p>\n<p><p>\u6570\u636e\u53ef\u89c6\u5316\u662f\u5224\u65ad\u6570\u636e\u8d28\u91cf\u7684\u76f4\u89c2\u65b9\u6cd5\uff0c\u901a\u8fc7\u56fe\u5f62\u5316\u5c55\u793a\uff0c\u80fd\u591f\u8fc5\u901f\u8bc6\u522b\u51fa\u6570\u636e\u4e2d\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n<ol>\n<li>\u7ed8\u5236\u6563\u70b9\u56fe<\/li>\n<\/ol>\n<p><p>\u6563\u70b9\u56fe\u53ef\u4ee5\u5c55\u793a\u4e24\u4e2a\u53d8\u91cf\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5e2e\u52a9\u6211\u4eec\u8bc6\u522b\u51fa\u5f02\u5e38\u6a21\u5f0f\u6216\u6570\u636e\u70b9\u3002\u4f7f\u7528Matplotlib\u6216Seaborn\u5e93\uff0c\u53ef\u4ee5\u8f7b\u677e\u7ed8\u5236\u6563\u70b9\u56fe\u5e76\u89c2\u5bdf\u6570\u636e\u5206\u5e03\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u7ed8\u5236\u7bb1\u7ebf\u56fe<\/li>\n<\/ol>\n<p><p>\u7bb1\u7ebf\u56fe\u662f\u4e00\u79cd\u6709\u6548\u7684\u5f02\u5e38\u68c0\u6d4b\u5de5\u5177\uff0c\u5b83\u80fd\u591f\u663e\u793a\u6570\u636e\u7684\u4e2d\u4f4d\u6570\u3001\u56db\u5206\u4f4d\u6570\u548c\u5f02\u5e38\u503c\u3002\u901a\u8fc7\u89c2\u5bdf\u7bb1\u7ebf\u56fe\u4e2d\u7684\u5f02\u5e38\u70b9\uff0c\u53ef\u4ee5\u5feb\u901f\u5224\u65ad\u6570\u636e\u4e2d\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u6570\u636e\u4e00\u81f4\u6027\u68c0\u67e5<\/p>\n<\/p>\n<p><p>\u786e\u4fdd\u6570\u636e\u7684\u4e00\u81f4\u6027\u662f\u5224\u65ad\u6570\u636e\u8d28\u91cf\u7684\u5173\u952e\u56e0\u7d20\u4e4b\u4e00\u3002<\/p>\n<\/p>\n<ol>\n<li>\u6570\u636e\u7c7b\u578b\u8f6c\u6362<\/li>\n<\/ol>\n<p><p>\u5728\u5206\u6790\u6570\u636e\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u6570\u636e\u7c7b\u578b\u7684\u4e00\u81f4\u6027\u3002\u4f8b\u5982\uff0c\u65e5\u671f\u5b57\u6bb5\u9700\u8981\u8f6c\u6362\u4e3a\u65e5\u671f\u683c\u5f0f\uff0c\u6570\u503c\u5b57\u6bb5\u9700\u8981\u8f6c\u6362\u4e3a\u6570\u503c\u683c\u5f0f\u3002\u4f7f\u7528Pandas\u7684<code>astype()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u6570\u636e\u8303\u56f4\u68c0\u67e5<\/li>\n<\/ol>\n<p><p>\u68c0\u67e5\u6570\u636e\u662f\u5426\u5728\u5408\u7406\u7684\u8303\u56f4\u5185\u53ef\u4ee5\u5e2e\u52a9\u8bc6\u522b\u9519\u8bef\u6570\u636e\u3002\u4f8b\u5982\uff0c\u5e74\u9f84\u5b57\u6bb5\u7684\u503c\u5e94\u8be5\u57280\u5230120\u4e4b\u95f4\u3002\u901a\u8fc7\u903b\u8f91\u5224\u65ad\u6216\u6761\u4ef6\u7b5b\u9009\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u4e0d\u5408\u7406\u7684\u6570\u636e\u70b9\u3002<\/p>\n<\/p>\n<p><p>\u516d\u3001\u6570\u636e\u5b8c\u6574\u6027\u9a8c\u8bc1<\/p>\n<\/p>\n<p><p>\u6570\u636e\u5b8c\u6574\u6027\u662f\u5224\u65ad\u6570\u636e\u8d28\u91cf\u7684\u91cd\u8981\u65b9\u9762\uff0c\u5b8c\u6574\u6027\u9a8c\u8bc1\u6709\u52a9\u4e8e\u786e\u4fdd\u6570\u636e\u7684\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n<ol>\n<li>\u5916\u952e\u7ea6\u675f\u68c0\u67e5<\/li>\n<\/ol>\n<p><p>\u5728\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e2d\uff0c\u5916\u952e\u7ea6\u675f\u7528\u4e8e\u7ef4\u62a4\u6570\u636e\u7684\u4e00\u81f4\u6027\u3002\u901a\u8fc7\u68c0\u67e5\u5916\u952e\u7ea6\u675f\uff0c\u53ef\u4ee5\u9a8c\u8bc1\u6570\u636e\u7684\u5b8c\u6574\u6027\uff0c\u786e\u4fdd\u5f15\u7528\u7684\u5916\u952e\u5b58\u5728\u4e8e\u4e3b\u952e\u8868\u4e2d\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u552f\u4e00\u6027\u7ea6\u675f\u68c0\u67e5<\/li>\n<\/ol>\n<p><p>\u552f\u4e00\u6027\u7ea6\u675f\u7528\u4e8e\u786e\u4fdd\u6570\u636e\u96c6\u4e2d\u67d0\u4e9b\u5b57\u6bb5\u7684\u503c\u662f\u552f\u4e00\u7684\u3002\u901a\u8fc7\u68c0\u67e5\u552f\u4e00\u6027\u7ea6\u675f\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u91cd\u590d\u6216\u51b2\u7a81\u7684\u6570\u636e\u3002<\/p>\n<\/p>\n<p><p>\u4e03\u3001\u6570\u636e\u8d28\u91cf\u8bc4\u4f30<\/p>\n<\/p>\n<p><p>\u6570\u636e\u8d28\u91cf\u8bc4\u4f30\u662f\u5bf9\u6570\u636e\u597d\u574f\u7684\u7efc\u5408\u5224\u65ad\uff0c\u901a\u8fc7\u591a\u7ef4\u5ea6\u7684\u8bc4\u4f30\uff0c\u53ef\u4ee5\u5168\u9762\u4e86\u89e3\u6570\u636e\u7684\u8d28\u91cf\u3002<\/p>\n<\/p>\n<ol>\n<li>\u6570\u636e\u51c6\u786e\u6027\u8bc4\u4f30<\/li>\n<\/ol>\n<p><p>\u6570\u636e\u51c6\u786e\u6027\u662f\u6307\u6570\u636e\u4e0e\u771f\u5b9e\u4e16\u754c\u60c5\u51b5\u7684\u543b\u5408\u7a0b\u5ea6\u3002\u901a\u8fc7\u5bf9\u6bd4\u6570\u636e\u4e0e\u771f\u5b9e\u60c5\u51b5\uff0c\u6216\u5229\u7528\u6570\u636e\u7684\u5148\u9a8c\u77e5\u8bc6\uff0c\u53ef\u4ee5\u8bc4\u4f30\u6570\u636e\u7684\u51c6\u786e\u6027\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u6570\u636e\u53ca\u65f6\u6027\u8bc4\u4f30<\/li>\n<\/ol>\n<p><p>\u6570\u636e\u53ca\u65f6\u6027\u662f\u6307\u6570\u636e\u66f4\u65b0\u7684\u53ca\u65f6\u7a0b\u5ea6\u3002\u901a\u8fc7\u8bc4\u4f30\u6570\u636e\u7684\u66f4\u65b0\u65f6\u95f4\u548c\u9891\u7387\uff0c\u53ef\u4ee5\u5224\u65ad\u6570\u636e\u662f\u5426\u80fd\u591f\u53cd\u6620\u6700\u65b0\u7684\u60c5\u51b5\u3002<\/p>\n<\/p>\n<p><p>\u516b\u3001<a href=\"https:\/\/docs.pingcode.com\/ask\/59192.html\" target=\"_blank\">\u673a\u5668\u5b66\u4e60<\/a>\u6a21\u578b\u9a8c\u8bc1<\/p>\n<\/p>\n<p><p>\u4f7f\u7528\u673a\u5668\u5b66\u4e60\u6a21\u578b\u53ef\u4ee5\u8fdb\u4e00\u6b65\u9a8c\u8bc1\u6570\u636e\u7684\u597d\u574f\uff0c\u901a\u8fc7\u6a21\u578b\u7684\u8868\u73b0\u6765\u8bc4\u4f30\u6570\u636e\u8d28\u91cf\u3002<\/p>\n<\/p>\n<ol>\n<li>\u6a21\u578b\u8bad\u7ec3\u4e0e\u9a8c\u8bc1<\/li>\n<\/ol>\n<p><p>\u901a\u8fc7\u8bad\u7ec3\u673a\u5668\u5b66\u4e60\u6a21\u578b\uff0c\u5e76\u9a8c\u8bc1\u6a21\u578b\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u5224\u65ad\u6570\u636e\u7684\u597d\u574f\u3002\u5982\u679c\u6a21\u578b\u7684\u51c6\u786e\u7387\u5f88\u9ad8\uff0c\u8bf4\u660e\u6570\u636e\u8d28\u91cf\u8f83\u597d\uff1b\u53cd\u4e4b\uff0c\u5219\u9700\u8981\u8fdb\u4e00\u6b65\u68c0\u67e5\u548c\u4f18\u5316\u6570\u636e\u3002<\/p>\n<\/p>\n<ol start=\"2\">\n<li>\u7279\u5f81\u91cd\u8981\u6027\u5206\u6790<\/li>\n<\/ol>\n<p><p>\u901a\u8fc7\u5206\u6790\u7279\u5f81\u7684\u91cd\u8981\u6027\uff0c\u53ef\u4ee5\u8bc6\u522b\u51fa\u5bf9\u6a21\u578b\u5f71\u54cd\u8f83\u5927\u7684\u6570\u636e\u7279\u5f81\u3002\u5229\u7528Sklearn\u5e93\u4e2d\u7684<code>feature_importances_<\/code>\u5c5e\u6027\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u7279\u5f81\u91cd\u8981\u6027\u5206\u6790\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u7528Python\u5224\u65ad\u6570\u636e\u7684\u8d28\u91cf\uff1f<\/strong><br \/>\u5224\u65ad\u6570\u636e\u7684\u8d28\u91cf\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u8fdb\u884c\u3002\u9996\u5148\uff0c\u53ef\u4ee5\u4f7f\u7528Pandas\u5e93\u4e2d\u7684<code>isnull()<\/code>\u548c<code>dropna()<\/code>\u51fd\u6570\u6765\u8bc6\u522b\u548c\u5904\u7406\u7f3a\u5931\u503c\u3002\u5176\u6b21\uff0c\u4f7f\u7528<code>describe()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u6570\u636e\u7684\u57fa\u672c\u7edf\u8ba1\u4fe1\u606f\uff0c\u4ece\u800c\u5224\u65ad\u6570\u636e\u7684\u5206\u5e03\u60c5\u51b5\u548c\u5f02\u5e38\u503c\u3002\u6b64\u5916\uff0c\u6570\u636e\u53ef\u89c6\u5316\u5de5\u5177\u5982Matplotlib\u548cSeaborn\u4e5f\u80fd\u5e2e\u52a9\u8bc6\u522b\u6570\u636e\u4e2d\u7684\u6f5c\u5728\u95ee\u9898\u3002<\/p>\n<p><strong>\u6570\u636e\u6e05\u6d17\u8fc7\u7a0b\u4e2d\u5e94\u6ce8\u610f\u54ea\u4e9bPython\u6280\u5de7\uff1f<\/strong><br \/>\u5728\u6570\u636e\u6e05\u6d17\u65f6\uff0c\u4f7f\u7528Python\u7684<code>replace()<\/code>\u548c<code>astype()<\/code>\u51fd\u6570\u53ef\u4ee5\u6709\u6548\u5904\u7406\u5f02\u5e38\u503c\u548c\u6570\u636e\u7c7b\u578b\u4e0d\u4e00\u81f4\u7684\u95ee\u9898\u3002\u5229\u7528<code>groupby()<\/code>\u548c<code>agg()<\/code>\u51fd\u6570\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u7edf\u8ba1\uff0c\u80fd\u591f\u66f4\u597d\u5730\u8bc6\u522b\u6570\u636e\u4e2d\u7684\u8d8b\u52bf\u548c\u5f02\u5e38\u3002\u6b64\u5916\uff0c\u5229\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\uff08Regex\uff09\u8fdb\u884c\u5b57\u7b26\u4e32\u5904\u7406\u4e5f\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u51c6\u786e\u6027\u3002<\/p>\n<p><strong>\u5982\u4f55\u8bc4\u4f30\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\uff1f<\/strong><br \/>\u8bc4\u4f30\u6570\u636e\u7684\u5b8c\u6574\u6027\u901a\u5e38\u53ef\u4ee5\u901a\u8fc7\u8ba1\u7b97\u7f3a\u5931\u503c\u7684\u6bd4\u4f8b\u6765\u5b8c\u6210\u3002\u4f7f\u7528Pandas\u4e2d\u7684<code>isna().sum()<\/code>\u53ef\u4ee5\u8fc5\u901f\u627e\u51fa\u6bcf\u5217\u7684\u7f3a\u5931\u60c5\u51b5\u3002\u5bf9\u4e8e\u6570\u636e\u7684\u4e00\u81f4\u6027\uff0c\u53ef\u4ee5\u901a\u8fc7<code>value_counts()<\/code>\u51fd\u6570\u67e5\u770b\u6570\u636e\u7684\u5206\u5e03\u60c5\u51b5\uff0c\u786e\u4fdd\u4e0d\u540c\u6570\u636e\u6e90\u4e4b\u95f4\u6216\u540c\u4e00\u6570\u636e\u6e90\u5185\u7684\u6570\u636e\u683c\u5f0f\u4e00\u81f4\u3002\u6570\u636e\u9a8c\u8bc1\u548c\u4ea4\u53c9\u68c0\u67e5\u4e5f\u662f\u63d0\u9ad8\u6570\u636e\u4e00\u81f4\u6027\u7684\u91cd\u8981\u6b65\u9aa4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5f00\u5934\u6bb5\u843d\uff1a\u5728Python\u4e2d\u5224\u65ad\u6570\u636e\u597d\u574f\u53ef\u4ee5\u901a\u8fc7\u6570\u636e\u6e05\u6d17\u3001\u7edf\u8ba1\u5206\u6790\u3001\u5f02\u5e38\u68c0\u6d4b\u3001\u6570\u636e\u53ef\u89c6\u5316\u7b49\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002\u5176\u4e2d\uff0c\u6570\u636e [&hellip;]","protected":false},"author":3,"featured_media":981667,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/981661"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=981661"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/981661\/revisions"}],"predecessor-version":[{"id":981670,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/981661\/revisions\/981670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/981667"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=981661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=981661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=981661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}