{"id":2829,"date":"2023-07-20T12:39:11","date_gmt":"2023-07-20T12:39:11","guid":{"rendered":"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/"},"modified":"2023-07-20T12:39:11","modified_gmt":"2023-07-20T12:39:11","slug":"pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa pandas dataframe"},"content":{"rendered":"

<\/p>\n

\n

\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u6765\u521b\u5efa\u586b\u5145\u968f\u673a\u6574\u6570\u7684 pandas DataFrame\uff1a<\/span><\/p>\n

 df = pd. DataFrame<\/span> ( np.random.randint<\/span> ( 0,100<\/span><\/span> ,size=( 10,3<\/span> )) ,<\/span> columns=list( '<\/span> ABC<\/span> '))\n<\/strong><\/pre>\n
\u6b64\u7279\u5b9a\u793a\u4f8b\u521b\u5efa\u4e00\u4e2a\u5177\u670910<\/strong>\u884c\u548c3<\/strong>\u5217\u7684 DataFrame\uff0c\u5176\u4e2d DataFrame \u4e2d\u7684\u6bcf\u4e2a\u503c\u90fd\u662f0<\/strong>\u5230100<\/strong>\u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570\u3002<\/span><\/p>\n
\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u4f7f\u7528\u6b64\u8bed\u6cd5\u3002<\/span><\/p>\n
\u793a\u4f8b 1\uff1a\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame<\/strong><\/span><\/h3>\n
\u4e0b\u9762\u7684\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2a 10 \u884c 3 \u5217\u7684 pandas DataFrame\uff0c\u5176\u4e2d DataFrame \u4e2d\u7684\u6bcf\u4e2a\u503c\u90fd\u662f 0 \u5230 100 \u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570\uff1a<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\nimport<\/span> numpy as<\/span> np\n\n#createDataFrame\ndf = pd. DataFrame<\/span> ( np.random.randint<\/span> ( 0,100<\/span> ,size=( 10,3<\/span> )), columns=list( '<\/span> ABC<\/span> ') )<\/span> \n\n#view DataFrame\n<\/span>print<\/span> (df)\n\n    ABC\n0 72 70 27\n1 87 85 7\n2 4 42 84\n3 85 87 63\n4 79 72 30\n5 96 99 79\n6 26 47 90\n7 35 69 56\n8 42 47 0\n9 97 4 59\n<\/span><\/span><\/strong><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u6bcf\u6b21\u8fd0\u884c\u6b64\u4ee3\u7801\u65f6\uff0cDataFrame \u4e2d\u7684\u968f\u673a\u6574\u6570\u90fd\u4f1a\u4e0d\u540c\u3002<\/span><\/p>\n
\u5982\u679c\u60a8\u60f3\u521b\u5efa\u4e00\u4e2a\u53ef\u91cd\u73b0\u7684\u793a\u4f8b\uff0c\u5176\u4e2d\u968f\u673a\u6574\u6570\u6bcf\u6b21\u90fd\u76f8\u540c\uff0c\u60a8\u53ef\u4ee5\u5728\u521b\u5efa DataFrame \u4e4b\u524d\u7acb\u5373\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/span><\/p>\n
 n.p. random<\/span> . seed<\/span> ( 0<\/span> )\n<\/strong><\/pre>\n
\u73b0\u5728\uff0c\u6bcf\u6b21\u8fd0\u884c\u4ee3\u7801\u65f6\uff0cDataFrame \u4e2d\u7684\u968f\u673a\u6574\u6570\u5c06\u662f\u76f8\u540c\u7684\u3002<\/span><\/p>\n
\u793a\u4f8b 2\uff1a\u5411\u73b0\u6709 DataFrame \u6dfb\u52a0\u968f\u673a\u6570\u636e\u5217<\/strong><\/span><\/h3>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4ee5\u4e0b\u73b0\u6709\u7684 pandas DataFrame\uff1a<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n<\/span><\/span>\n#createDataFrame\ndf = pd. DataFrame<\/span> ({' team<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\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]})<\/span>\n\n#view DataFrame\nprint<\/span> (df)\n\n  team points assists rebounds\n0 A 18 5 11\n1 B 22 7 8\n2 C 19 7 10\n3 D 14 9 6\n4 E 14 12 6\n5 F 11 9 5\n6 G 20 9 9\n7:28 4 12\n<\/span><\/span><\/strong><\/pre>\n
\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u6dfb\u52a0\u4e00\u4e2a\u540d\u4e3a\u201crand\u201d\u7684\u65b0\u5217\uff0c\u5176\u4e2d\u5305\u542b 0 \u5230 100 \u4e4b\u95f4\u7684\u968f\u673a\u6574\u6570\uff1a<\/span><\/p>\n
 import<\/span> numpy as<\/span> np\n<\/span><\/span>\n#add 'rand' column that contains 8 random integers between 0 and 100\ndf[' rand<\/span> '] = np. random<\/span> . randint<\/span> ( 0,100<\/span> , size<\/span> = (<\/span> 8,1<\/span> ))\n<\/span>\n#view updated DataFrame\nprint<\/span> (df)\n\n  team points assists rebounds rand\n0 A 18 5 11 47\n1 B 22 7 8 64\n2 C 19 7 10 82\n3 D 14 9 6 99\n4 E 14 12 6 88\n5 F 11 9 5 49\n6 G 20 9 9 29\n7:28 4 12 19<\/span><\/span><\/strong><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u65b0\u5217\u201crand\u201d\u5df2\u6dfb\u52a0\u5230\u73b0\u6709 DataFrame \u4e2d\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\u4f30\u7b97 pandas \u4e2d\u7684\u7f3a\u5931\u503c<\/a>
\u5982\u4f55\u5728 Pandas \u4e2d\u7528\u96f6\u66ff\u6362 NaN \u503c<\/a>
\u5982\u4f55\u68c0\u67e5 Pandas \u4e2d\u7684\u5355\u5143\u683c\u662f\u5426\u4e3a\u7a7a<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u6765\u521b\u5efa\u586b\u5145\u968f\u673a\u6574\u6570\u7684 pandas DataFrame\uff1a df = pd. DataFr […]<\/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-2829","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"\n\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame - Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u521b\u5efa\u586b\u5145\u968f\u673a\u6570\u7684 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\/pandas-\u751f\u6210\u968f\u673a\u6570\u636e\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame - Statorials\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u521b\u5efa\u586b\u5145\u968f\u673a\u6570\u7684 pandas DataFrame\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/cn\/pandas-\u751f\u6210\u968f\u673a\u6570\u636e\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-20T12:39:11+00:00\" \/>\n<meta name=\"author\" content=\"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/\",\"url\":\"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/\",\"name\":\"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/cn\/#website\"},\"datePublished\":\"2023-07-20T12:39:11+00:00\",\"dateModified\":\"2023-07-20T12:39:11+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/cn\/#\/schema\/person\/124e4e5b7c9f8dc0f1f95cc8c1db3261\"},\"description\":\"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u521b\u5efa\u586b\u5145\u968f\u673a\u6570\u7684 pandas DataFrame\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u5bb6\",\"item\":\"https:\/\/statorials.org\/cn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa pandas dataframe\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/cn\/#website\",\"url\":\"https:\/\/statorials.org\/cn\/\",\"name\":\"Statorials\",\"description\":\"\u60a8\u7684\u7edf\u8ba1\u7d20\u517b\u6307\u5357\uff01\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/cn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/cn\/#\/schema\/person\/124e4e5b7c9f8dc0f1f95cc8c1db3261\",\"name\":\"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/statorials.org\/cn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/cn\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/cn\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a\"},\"description\":\"\u5927\u5bb6\u597d\uff0c\u6211\u662f\u672c\u6770\u660e\uff0c\u4e00\u4f4d\u9000\u4f11\u7684\u7edf\u8ba1\u5b66\u6559\u6388\uff0c\u540e\u6765\u6210\u4e3a Statorials \u7684\u70ed\u5fc3\u6559\u5e08\u3002 \u51ed\u501f\u5728\u7edf\u8ba1\u9886\u57df\u7684\u4e30\u5bcc\u7ecf\u9a8c\u548c\u4e13\u4e1a\u77e5\u8bc6\uff0c\u6211\u6e34\u671b\u5206\u4eab\u6211\u7684\u77e5\u8bc6\uff0c\u901a\u8fc7 Statorials \u589e\u5f3a\u5b66\u751f\u7684\u80fd\u529b\u3002\u4e86\u89e3\u66f4\u591a\",\"sameAs\":[\"https:\/\/statorials.org\/cn\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame - Statorials","description":"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u521b\u5efa\u586b\u5145\u968f\u673a\u6570\u7684 pandas DataFrame\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/cn\/pandas-\u751f\u6210\u968f\u673a\u6570\u636e\/","og_locale":"zh_CN","og_type":"article","og_title":"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame - Statorials","og_description":"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u521b\u5efa\u586b\u5145\u968f\u673a\u6570\u7684 pandas DataFrame\u3002","og_url":"https:\/\/statorials.org\/cn\/pandas-\u751f\u6210\u968f\u673a\u6570\u636e\/","og_site_name":"Statorials","article_published_time":"2023-07-20T12:39:11+00:00","author":"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/","url":"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/","name":"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa Pandas DataFrame - Statorials","isPartOf":{"@id":"https:\/\/statorials.org\/cn\/#website"},"datePublished":"2023-07-20T12:39:11+00:00","dateModified":"2023-07-20T12:39:11+00:00","author":{"@id":"https:\/\/statorials.org\/cn\/#\/schema\/person\/124e4e5b7c9f8dc0f1f95cc8c1db3261"},"description":"\u672c\u6559\u7a0b\u901a\u8fc7\u51e0\u4e2a\u793a\u4f8b\u89e3\u91ca\u4e86\u5982\u4f55\u521b\u5efa\u586b\u5145\u968f\u673a\u6570\u7684 pandas DataFrame\u3002","breadcrumb":{"@id":"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/cn\/pandas-%e7%94%9f%e6%88%90%e9%9a%8f%e6%9c%ba%e6%95%b0%e6%8d%ae\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u5bb6","item":"https:\/\/statorials.org\/cn\/"},{"@type":"ListItem","position":2,"name":"\u5982\u4f55\u4f7f\u7528\u968f\u673a\u6570\u636e\u521b\u5efa pandas dataframe"}]},{"@type":"WebSite","@id":"https:\/\/statorials.org\/cn\/#website","url":"https:\/\/statorials.org\/cn\/","name":"Statorials","description":"\u60a8\u7684\u7edf\u8ba1\u7d20\u517b\u6307\u5357\uff01","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/statorials.org\/cn\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/statorials.org\/cn\/#\/schema\/person\/124e4e5b7c9f8dc0f1f95cc8c1db3261","name":"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/statorials.org\/cn\/#\/schema\/person\/image\/","url":"https:\/\/statorials.org\/cn\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg","contentUrl":"https:\/\/statorials.org\/cn\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg","caption":"\u672c\u6770\u660e\u00b7\u5b89\u5fb7\u68ee\u535a"},"description":"\u5927\u5bb6\u597d\uff0c\u6211\u662f\u672c\u6770\u660e\uff0c\u4e00\u4f4d\u9000\u4f11\u7684\u7edf\u8ba1\u5b66\u6559\u6388\uff0c\u540e\u6765\u6210\u4e3a Statorials \u7684\u70ed\u5fc3\u6559\u5e08\u3002 \u51ed\u501f\u5728\u7edf\u8ba1\u9886\u57df\u7684\u4e30\u5bcc\u7ecf\u9a8c\u548c\u4e13\u4e1a\u77e5\u8bc6\uff0c\u6211\u6e34\u671b\u5206\u4eab\u6211\u7684\u77e5\u8bc6\uff0c\u901a\u8fc7 Statorials \u589e\u5f3a\u5b66\u751f\u7684\u80fd\u529b\u3002\u4e86\u89e3\u66f4\u591a","sameAs":["https:\/\/statorials.org\/cn"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/posts\/2829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/comments?post=2829"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/posts\/2829\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/media?parent=2829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/categories?post=2829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/cn\/wp-json\/wp\/v2\/tags?post=2829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}