{"id":3755,"date":"2023-07-15T17:57:30","date_gmt":"2023-07-15T17:57:30","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-nao-contem\/"},"modified":"2023-07-15T17:57:30","modified_gmt":"2023-07-15T17:57:30","slug":"pandas-nao-contem","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-nao-contem\/","title":{"rendered":"Pandas: como filtrar itens \u201cn\u00e3o cont\u00e9m\u201d?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para executar um filtro &#8220;N\u00e3o cont\u00e9m&#8221; em um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: Filtrar linhas que n\u00e3o cont\u00eam uma string espec\u00edfica<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>filtered_df = df[df[' <span style=\"color: #ff0000;\">my_column<\/span> ']. <span style=\"color: #3366ff;\">str<\/span> . <span style=\"color: #3366ff;\">contains<\/span> (' <span style=\"color: #ff0000;\">some_string<\/span> ') <span style=\"color: #800080;\">==<\/span> <span style=\"color: #008000;\">False<\/span> ]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: Filtrar linhas que n\u00e3o cont\u00eam uma das v\u00e1rias strings espec\u00edficas<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>filtered_df = df[df[' <span style=\"color: #ff0000;\">my_column<\/span> ']. <span style=\"color: #3366ff;\">str<\/span> . <span style=\"color: #3366ff;\">contains<\/span> (' <span style=\"color: #ff0000;\">string1|string2|string3<\/span> ') <span style=\"color: #800080;\">==<\/span> <span style=\"color: #008000;\">False<\/span> ]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica com o seguinte DataFrame do pandas:<\/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;\">#createDataFrame\n<span style=\"color: #000000;\">df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['Nets', 'Rockets', 'Mavs', 'Spurs', 'Kings', 'Nuggets'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [18, 22, 19, 14, 14, 11],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n      team points assists rebounds\n0 Nets 18 5 11\n1 Rockets 22 7 8\n2 Mavs 19 7 10\n3 Spurs 14 9 6\n4 Kings 14 12 6\n5 Nuggets 11 9 5\n<\/span><\/span><\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: Filtrar linhas que n\u00e3o cont\u00eam uma string espec\u00edfica<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como filtrar o DataFrame do pandas para linhas cuja coluna <strong>de equipe<\/strong> n\u00e3o cont\u00e9m &#8220;ets&#8221; no nome:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#filter for rows that do not contain 'ets' in the 'team' column\n<\/span>filtered_df = df[df[' <span style=\"color: #ff0000;\">team<\/span> ']. <span style=\"color: #3366ff;\">str<\/span> . <span style=\"color: #3366ff;\">contains<\/span> (' <span style=\"color: #ff0000;\">ets<\/span> ') <span style=\"color: #800080;\">==<\/span> <span style=\"color: #008000;\">False<\/span> ]\n\n<span style=\"color: #008080;\">#view filtered DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (filtered_df)\n\n    team points assists rebounds\n2 Mavs 19 7 10\n3 Spurs 14 9 6\n4 Kings 14 12 6<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que o DataFrame resultante n\u00e3o cont\u00e9m nenhuma linha cujo valor na coluna da <strong>equipe<\/strong> contenha &#8220;ets&#8221; no nome.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Em particular, as seguintes equipas foram exclu\u00eddas do DataFrame:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>Redes<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Foguetes<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Pepitas<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Observe que cada um desses nomes de times tinha &#8220;ets&#8221; no nome.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2: Filtrar linhas que n\u00e3o cont\u00eam uma das diversas strings espec\u00edficas<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como filtrar o DataFrame do pandas para linhas cuja coluna <strong>de equipe<\/strong> n\u00e3o cont\u00e9m &#8220;ets&#8221; no nome:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#filter for rows that do not contain 'ets' or 'urs' in the 'team' column\n<\/span>filtered_df = df[df[' <span style=\"color: #ff0000;\">team<\/span> ']. <span style=\"color: #3366ff;\">str<\/span> . <span style=\"color: #3366ff;\">contains<\/span> (' <span style=\"color: #ff0000;\">ets|urs<\/span> ') <span style=\"color: #800080;\">==<\/span> <span style=\"color: #008000;\">False<\/span> ]\n\n<span style=\"color: #008080;\">#view filtered DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (filtered_df)\n\n    team points assists rebounds\n2 Mavs 19 7 10\n4 Kings 14 12 6<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que o DataFrame resultante n\u00e3o cont\u00e9m nenhuma linha cujo valor na coluna <strong>da equipe<\/strong> contenha &#8220;ets&#8221; ou &#8220;urs&#8221; no nome.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : O <strong>|<\/strong> O operador significa \u201cOR\u201d em pandas.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras opera\u00e7\u00f5es comuns de filtragem em pandas:<\/span><\/p>\n<p> Como filtrar um DataFrame do Pandas por valores de coluna<br \/> <a href=\"https:\/\/statorials.org\/pt\/estatologia-explica-conceitos-de-forma-simples-e-direta-facilitamos-o-aprendizado-de-estatistica\/\" target=\"_blank\" rel=\"noopener\">Como filtrar linhas do Pandas DataFrame por data<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-filtram-multiplas-condicoes\/\" target=\"_blank\" rel=\"noopener\">Como filtrar um DataFrame do Pandas em m\u00faltiplas condi\u00e7\u00f5es<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para executar um filtro &#8220;N\u00e3o cont\u00e9m&#8221; em um DataFrame do pandas: M\u00e9todo 1: Filtrar linhas que n\u00e3o cont\u00eam uma string espec\u00edfica filtered_df = df[df[&#8216; my_column &#8216;]. str . contains (&#8216; some_string &#8216;) == False ] M\u00e9todo 2: Filtrar linhas que n\u00e3o cont\u00eam uma das v\u00e1rias strings espec\u00edficas filtered_df = [&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-3755","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>Pandas: Como filtrar &quot;N\u00e3o cont\u00e9m&quot; - Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como filtrar linhas de um DataFrame do pandas que n\u00e3o cont\u00e9m uma string espec\u00edfica, com um exemplo.\" \/>\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-nao-contem\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandas: Como filtrar &quot;N\u00e3o cont\u00e9m&quot; 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