{"id":2182,"date":"2023-07-23T08:49:30","date_gmt":"2023-07-23T08:49:30","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-so-pode-comparar-objetos-seriais-rotulados-de-forma-identica\/"},"modified":"2023-07-23T08:49:30","modified_gmt":"2023-07-23T08:49:30","slug":"pandas-so-pode-comparar-objetos-seriais-rotulados-de-forma-identica","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-so-pode-comparar-objetos-seriais-rotulados-de-forma-identica\/","title":{"rendered":"Como corrigir: s\u00f3 \u00e9 poss\u00edvel comparar objetos seriais rotulados de forma id\u00eantica"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Um erro que voc\u00ea pode encontrar ao usar pandas \u00e9:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #ff0000;\">ValueError<\/span> : Can only compare identically-labeled DataFrame objects\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este erro ocorre quando voc\u00ea tenta comparar dois DataFrames do pandas e os r\u00f3tulos de \u00edndice ou r\u00f3tulos de coluna n\u00e3o correspondem perfeitamente.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como corrigir esse erro na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Como reproduzir o erro<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Vamos supor que temos os dois DataFrames panda a seguir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#define DataFrames\n<span style=\"color: #000000;\">df1 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">points<\/span> ': [25, 12, 15, 14],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 13, 12]})\n\ndf2 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">points<\/span> ': [25, 12, 15, 14],\n                    ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 13, 12]},\n                     index=[3, 2, 1, 0])\n\n<span style=\"color: #008080;\">#view DataFrames\n<\/span><span style=\"color: #008000;\">print<\/span> (df1)\n\n   assist points\n0 25 5\n1 12 7\n2 15 13\n3 14 12\n\n<span style=\"color: #008000;\">print<\/span> (df2)\n\n   assist points\n3 25 5\n2 12 7\n1 15 13\n0 14 12<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que os r\u00f3tulos das colunas correspondem, mas os r\u00f3tulos dos \u00edndices n\u00e3o.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Se tentarmos comparar os dois DataFrames, receberemos um erro:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#attempt to compare the DataFrames\n<span style=\"color: #000000;\">df1 = df2\n\n<span style=\"color: #ff0000;\">ValueError<\/span> : Can only compare identically-labeled DataFrame objects\n<\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Como corrigir o erro<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Existem alguns m\u00e9todos que podemos usar para resolver esse erro.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: compare DataFrames (incluindo r\u00f3tulos de \u00edndice)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para comparar os dois DataFrames e ver se eles s\u00e3o uma correspond\u00eancia perfeita (incluindo r\u00f3tulos de \u00edndice):<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">df1. <span style=\"color: #3366ff;\">equals<\/span> (df2)\n\nFalse<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Isto nos diz que os dois DataFrames n\u00e3o combinam perfeitamente (incluindo os r\u00f3tulos do \u00edndice).<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: comparar DataFrames (ignorar r\u00f3tulos de \u00edndice)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para comparar os dois DataFrames para ver se eles s\u00e3o uma correspond\u00eancia perfeita, ignorando completamente os r\u00f3tulos do \u00edndice:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">df1. <span style=\"color: #3366ff;\">reset_index<\/span> (drop= <span style=\"color: #008000;\">True<\/span> ). <span style=\"color: #3366ff;\">equals<\/span> ( <span style=\"color: #3366ff;\">df2.reset_index<\/span> (drop= <span style=\"color: #008000;\">True<\/span> ))\n<\/span>\n<span style=\"color: #000000;\">True<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Isso nos diz que os dois DataFrames combinam perfeitamente (ignorando os r\u00f3tulos de \u00edndice).<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 3: compare DataFrames linha por linha<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para comparar os dois DataFrames linha por linha para ver quais valores de linha correspondem:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">df1. <span style=\"color: #3366ff;\">reset_index<\/span> (drop= <span style=\"color: #008000;\">True<\/span> ) == df2. <span style=\"color: #3366ff;\">reset_index<\/span> (drop= <span style=\"color: #008000;\">True<\/span> )<\/span>\n\n      <span style=\"color: #000000;\">assist points\n0 True<\/span> <span style=\"color: #000000;\">True\n1 True<\/span> <span style=\"color: #000000;\">True\n2 True<\/span> <span style=\"color: #000000;\">True\n3 True<\/span> <span style=\"color: #000000;\">True<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Isso nos permite ver quais valores correspondem em cada linha.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como corrigir outros erros comuns em Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/erro-de-chave-do-pandas\/\" target=\"_blank\" rel=\"noopener\">Como corrigir KeyError em Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/valueerror-nao-pode-converter-float-nan-em-inteiro\/\" target=\"_blank\" rel=\"noopener\">Como corrigir: ValueError: n\u00e3o \u00e9 poss\u00edvel converter float NaN em int<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/os-operandos-nao-puderam-ser-transmitidos-com-os-formularios\/\" target=\"_blank\" rel=\"noopener\">Como corrigir: ValueError: os operandos n\u00e3o puderam ser transmitidos com formas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um erro que voc\u00ea pode encontrar ao usar pandas \u00e9: ValueError : Can only compare identically-labeled DataFrame objects Este erro ocorre quando voc\u00ea tenta comparar dois DataFrames do pandas e os r\u00f3tulos de \u00edndice ou r\u00f3tulos de coluna n\u00e3o correspondem perfeitamente. O exemplo a seguir mostra como corrigir esse erro na pr\u00e1tica. Como reproduzir o [&hellip;]<\/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-2182","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como corrigir: s\u00f3 \u00e9 poss\u00edvel comparar objetos de s\u00e9rie com r\u00f3tulos id\u00eanticos - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como corrigir o seguinte erro no pandas: S\u00f3 \u00e9 poss\u00edvel comparar objetos seriais rotulados de forma id\u00eantica.\" \/>\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\/pt\/pandas-so-pode-comparar-objetos-seriais-rotulados-de-forma-identica\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como corrigir: s\u00f3 \u00e9 poss\u00edvel comparar objetos de s\u00e9rie com r\u00f3tulos id\u00eanticos - 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