{"id":2509,"date":"2023-07-21T23:26:49","date_gmt":"2023-07-21T23:26:49","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e6%97%a0%e6%b3%95%e4%bd%bf%e7%94%a8-dtyped-int64-%e6%95%b0%e7%bb%84%e5%92%8c-bool-%e7%b1%bb%e5%9e%8b%e7%9a%84%e6%a0%87%e9%87%8f%e6%89%a7%e8%a1%8c-rand_\/"},"modified":"2023-07-21T23:26:49","modified_gmt":"2023-07-21T23:26:49","slug":"%e6%97%a0%e6%b3%95%e4%bd%bf%e7%94%a8-dtyped-int64-%e6%95%b0%e7%bb%84%e5%92%8c-bool-%e7%b1%bb%e5%9e%8b%e7%9a%84%e6%a0%87%e9%87%8f%e6%89%a7%e8%a1%8c-rand_","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e6%97%a0%e6%b3%95%e4%bd%bf%e7%94%a8-dtyped-int64-%e6%95%b0%e7%bb%84%e5%92%8c-bool-%e7%b1%bb%e5%9e%8b%e7%9a%84%e6%a0%87%e9%87%8f%e6%89%a7%e8%a1%8c-rand_\/","title":{"rendered":"\u5982\u4f55\u4fee\u590d\uff1a\u65e0\u6cd5\u4f7f\u7528 [int64] \u7c7b\u578b\u7684\u6570\u7ec4\u548c [bool] \u7c7b\u578b\u7684\u6807\u91cf\u6267\u884c\u201crand_\u201d"},"content":{"rendered":"

<\/p>\n

\n

\u60a8\u5728 Python \u4e2d\u53ef\u80fd\u9047\u5230\u7684\u9519\u8bef\u662f\uff1a<\/span><\/p>\n

 TypeError<\/span> :Cannot perform 'rand_' with a dtyped [int64] array and scalar of type [bool]\n<\/strong><\/pre>\n
\u5f53\u60a8\u5c1d\u8bd5\u4f7f\u7528\u591a\u4e2a\u6761\u4ef6\u8fc7\u6ee4 pandas DataFrame \u4f46\u65e0\u6cd5\u5728\u6bcf\u4e2a\u5355\u72ec\u7684\u6761\u4ef6\u5468\u56f4\u4f7f\u7528\u62ec\u53f7\u65f6\uff0c\u901a\u5e38\u4f1a\u53d1\u751f\u6b64\u9519\u8bef\u3002<\/span><\/p>\n
\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u7ea0\u6b63\u6b64\u9519\u8bef\u3002<\/span><\/p>\n
\u5982\u4f55\u91cd\u73b0\u9519\u8bef<\/strong><\/span><\/h3>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4ee5\u4e0b pandas DataFrame\uff1a<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#createDataFrame\ndf = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'],\n                   ' points<\/span> ': [18, 22, 19, 14, 14, 11, 20, 28],\n                   ' assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12]})\n\n#view DataFrame\n<\/span>print<\/span> (df)\n\n  team points assists rebounds\n0 A 18 5 11\n1 to 22 7 8\n2 A 19 7 10\n3 A 14 9 6\n4 B 14 12 6\n5 B 11 9 5\n6 B 20 9 9\n7 B 28 4 12\n<\/span><\/span><\/strong><\/pre>\n
\u73b0\u5728\uff0c\u5047\u8bbe\u6211\u4eec\u5c1d\u8bd5\u8fc7\u6ee4 DataFrame \u4ee5\u4ec5\u663e\u793a\u56e2\u961f\u5217\u7b49\u4e8e\u201cA\u201d\u4e14\u70b9\u6570\u5217\u5927\u4e8e 15 \u7684\u884c\uff1a<\/span><\/p>\n
 #attempt to filter DataFrame\ndf. loc<\/span> [df. team<\/span> == ' A<\/span> ' & df. points<\/span> > 15<\/span> ]\n\nTypeError<\/span> :Cannot perform 'rand_' with a dtyped [int64] array and scalar of type [bool]\n<\/span><\/span><\/strong><\/pre>\n
\u6211\u4eec\u6536\u5230\u9519\u8bef\uff0c\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u5728\u6bcf\u4e2a\u5355\u72ec\u7684\u6761\u4ef6\u4e24\u8fb9\u52a0\u4e0a\u62ec\u53f7\u3002<\/span><\/p>\n
\u5982\u4f55\u4fee\u590d\u9519\u8bef<\/strong><\/span><\/h3>\n
\u8981\u4fee\u590d\u6b64\u9519\u8bef\uff0c\u6211\u4eec\u53ea\u9700\u786e\u4fdd\u5728\u8fd0\u884c\u8fc7\u6ee4\u5668\u65f6\u5728\u6bcf\u4e2a\u5355\u72ec\u7684\u6761\u4ef6\u5468\u56f4\u653e\u7f6e\u62ec\u53f7\uff1a<\/span><\/p>\n
 #filter DataFrame\ndf. loc<\/span> [(df. team<\/span> == ' A<\/span> ') & (df. points<\/span> > 15<\/span> )]\n\n\tteam points assists rebounds\n0 A 18 5 11\n1 to 22 7 8\n2 A 19 7 10\n<\/span><\/span><\/strong><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u80fd\u591f\u6210\u529f\u8fc7\u6ee4 DataFrame\uff0c\u4ec5\u663e\u793a Team \u7b49\u4e8e\u201cA\u201d\u4e14 Points \u5927\u4e8e 15 \u7684\u884c\u3002<\/span><\/p>\n
\u8bf7\u6ce8\u610f\uff0c\u5982\u679c\u6211\u4eec\u4f7f\u7528\u6216\u201c|\u201d\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5728\u6bcf\u4e2a\u5355\u72ec\u7684\u6761\u4ef6\u5468\u56f4\u653e\u7f6e\u62ec\u53f7\u3002 \u00bb \u8fd0\u7b97\u7b26\u6539\u4e3a\uff1a<\/span><\/p>\n
 #filter rows where team is equal to 'A' or<\/em> points is greater than 15\ndf. loc<\/span> [( df.team<\/span> == ' A<\/span> ') | (df. points<\/span> > 15<\/span> )]\n\nteam points assists rebounds\n0 A 18 5 11\n1 to 22 7 8\n2 A 19 7 10\n3 A 14 9 6\n6 B 20 9 9\n7 B 28 4 12\n<\/span><\/span><\/strong><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u518d\u6b21\u907f\u514d\u4efb\u4f55\u9519\u8bef\u3002<\/span><\/p>\n
\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h3>\n
\u4ee5\u4e0b\u6559\u7a0b\u89e3\u91ca\u4e86\u5982\u4f55\u4fee\u590d pandas \u4e2d\u7684\u5176\u4ed6\u5e38\u89c1\u9519\u8bef\uff1a<\/span><\/p>\n
\u5982\u4f55\u4fee\u590d\uff1a\u201cpandas\u201d\u6a21\u5757\u6ca1\u6709\u201cdataframe\u201d\u5c5e\u6027<\/a>
\u5982\u4f55\u4fee\u590d\uff1a\u7c7b\u578b\u9519\u8bef\uff1a\u6ca1\u6709\u8981\u7ed8\u5236\u7684\u6570\u5b57\u6570\u636e<\/a>
\u5982\u4f55\u4fee\u590d Pandas \u4e2d\u7684 KeyError<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u60a8\u5728 Python \u4e2d\u53ef\u80fd\u9047\u5230\u7684\u9519\u8bef\u662f\uff1a TypeError :Cannot perform ‘rand_’  […]<\/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-2509","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"\n\u5982\u4f55\u4fee\u590d\uff1a\u65e0\u6cd5\u4f7f\u7528 [int64] \u7c7b\u578b\u7684\u6570\u7ec4\u548c [bool] \u7c7b\u578b\u7684\u6807\u91cf\u6267\u884c\u201crand_\u201d - Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u4fee\u590d pandas \u4e2d\u7684\u4ee5\u4e0b\u9519\u8bef\uff1a\u65e0\u6cd5\u4f7f\u7528\u7c7b\u578b\u4e3a [int64] \u7684\u6570\u7ec4\u548c\u7c7b\u578b\u4e3a [bool] \u7684\u6807\u91cf\u6267\u884c\u201crand_\u201d\" \/>\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\/\u65e0\u6cd5\u4f7f\u7528-dtyped-int64-\u6570\u7ec4\u548c-bool-\u7c7b\u578b\u7684\u6807\u91cf\u6267\u884c-rand_\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u4fee\u590d\uff1a\u65e0\u6cd5\u4f7f\u7528 [int64] \u7c7b\u578b\u7684\u6570\u7ec4\u548c [bool] \u7c7b\u578b\u7684\u6807\u91cf\u6267\u884c\u201crand_\u201d - 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