{"id":2404,"date":"2023-07-22T10:29:07","date_gmt":"2023-07-22T10:29:07","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e7%86%8a%e7%8c%ab%e6%8f%92%e5%85%a5%e8%a1%8c\/"},"modified":"2023-07-22T10:29:07","modified_gmt":"2023-07-22T10:29:07","slug":"%e7%86%8a%e7%8c%ab%e6%8f%92%e5%85%a5%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e7%86%8a%e7%8c%ab%e6%8f%92%e5%85%a5%e8%a1%8c\/","title":{"rendered":"\u5982\u4f55\u5c06\u884c\u63d2\u5165 pandas dataframe"},"content":{"rendered":"

<\/p>\n

\n

\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u5c06\u884c\u63d2\u5165\u5230 pandas DataFrame \u4e2d\u7684\u7279\u5b9a\u4f4d\u7f6e\uff1a<\/span><\/p>\n

 import<\/span> pandas as<\/span> pd\nimport<\/span> numpy as<\/span> np\n\n#insert row with values [1, 7, 6] into existing DataFrame at index=4<\/span>\np.d. DataFrame<\/span> ( np.insert<\/span> ( df.values<\/span> ,4,values=[1,7,6],axis= 0<\/span> ))\n<\/strong><\/pre>\n
\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u901a\u8fc7\u4ee5\u4e0b pandas DataFrame \u4f7f\u7528\u6b64\u8bed\u6cd5\uff1a<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#createDataFrame\ndf = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'A', 'B', 'B', 'C'],\n                   ' assists<\/span> ': [5, 7, 7, 9, 12],\n                   ' rebounds<\/span> ': [11, 8, 10, 6, 6]})\n\n#view DataFrame\n<\/span>df\n\n        team assists rebounds\n0 to 5 11\n1 to 7 8\n2 B 7 10\n3 B 9 6\n4 C 12 6\n<\/span><\/span><\/strong><\/pre>\n
\u793a\u4f8b1\uff1a\u5c06\u503c\u63d2\u5165Pandas DataFrame\u7684\u7b2c\u4e00\u884c<\/strong><\/span><\/h3>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u5c06\u4e00\u884c\u503c\u63d2\u5165\u5230 pandas DataFrame \u7684\u7b2c\u4e00\u884c\u4e2d\uff1a<\/span><\/p>\n
 #insert values into first row of DataFrame\n<\/span>df2 = pd. DataFrame<\/span> (np. insert<\/span> (df. values<\/span> , 0, values=['A', 3, 4], axis= 0<\/span> ))\n\n#define column names of DataFrame\n<\/span>df2. columns<\/span> = df. columns<\/span>\n\n#view updated DataFrame\n<\/span>df2\n\n\tteam assists rebounds\n0 to 3 4\n1 to 5 11\n2 to 7 8\n3 B 7 10\n4 B 9 6\n5 C 12 6<\/span><\/span><\/strong><\/pre>\n
\u793a\u4f8b2\uff1a\u5c06\u503c\u63d2\u5165\u5230Pandas DataFrame\u7684\u7279\u5b9a\u884c\u4e2d<\/strong><\/span><\/h3>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u5c06\u4e00\u884c\u503c\u63d2\u5165\u5230 pandas DataFrame \u7684\u7279\u5b9a\u884c\u4e2d\uff1a<\/span><\/p>\n
 #insert values into third row (index position=2) of DataFrame\n<\/span>df2 = pd. DataFrame<\/span> (np. insert<\/span> (df. values<\/span> , 2, values=['A', 3, 4], axis= 0<\/span> ))\n\n#define column names of DataFrame\n<\/span>df2. columns<\/span> = df. columns<\/span>\n\n#view updated DataFrame\n<\/span>df2\n\n        team assists rebounds\n0 to 5 11\n1 to 7 8\n2 to 3 4\n3 B 7 10\n4 B 9 6\n5 C 12 6<\/span><\/span><\/strong><\/pre>\n
\u793a\u4f8b3\uff1a\u5728Pandas DataFrame\u7684\u6700\u540e\u4e00\u884c\u63d2\u5165\u503c<\/strong><\/span><\/h3>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u5c06\u4e00\u884c\u503c\u63d2\u5165\u5230 pandas DataFrame \u7684\u6700\u540e\u4e00\u884c\u4e2d\uff1a<\/span><\/p>\n
 #insert values into last row of DataFrame\n<\/span>df2 = pd. DataFrame<\/span> (np. insert<\/span> (df. values<\/span> , len<\/span> (df. index<\/span> ), values=['A', 3, 4], axis= 0<\/span> ))\n\n#define column names of DataFrame\n<\/span>df2. columns<\/span> = df. columns<\/span>\n\n#view updated DataFrame\n<\/span>df2\n\n\tteam assists rebounds\n0 to 5 11\n1 to 7 8\n2 B 7 10\n3 B 9 6\n4 C 12 6\n5 A 3 4<\/span><\/span><\/strong><\/pre>\n
\u6ce8\u610f<\/strong>\uff1a\u60a8\u53ef\u4ee5\u5728\u6b64\u5904<\/a>\u627e\u5230 NumPy insert()<\/strong>\u51fd\u6570\u7684\u5b8c\u6574\u6587\u6863\u3002<\/span><\/p>\n
\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h3>\n
\u4ee5\u4e0b\u6559\u7a0b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 pandas \u4e2d\u6267\u884c\u5176\u4ed6\u5e38\u89c1\u64cd\u4f5c\uff1a<\/span><\/p>\n
\u5982\u4f55\u5c06\u5217\u63d2\u5165 Pandas DataFrame<\/a>
\u5982\u4f55\u5411 Pandas DataFrame \u6dfb\u52a0\u884c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u5c06\u884c\u63d2\u5165\u5230 pandas DataFrame \u4e2d\u7684\u7279\u5b9a\u4f4d\u7f6e\uff1a import pandas […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-2404","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"\n\u5982\u4f55\u5411 DataFrame Pandas \u4e2d\u63d2\u5165\u4e00\u884c \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u5c06\u884c\u63d2\u5165 pandas DataFrame\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/cn\/\u718a\u732b\u63d2\u5165\u884c\/\" \/>\n<meta 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