{"id":2869,"date":"2023-07-20T08:06:34","date_gmt":"2023-07-20T08:06:34","guid":{"rendered":"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/"},"modified":"2023-07-20T08:06:34","modified_gmt":"2023-07-20T08:06:34","slug":"estatisticas-resumidas-do-pandas","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/","title":{"rendered":"Como calcular estat\u00edsticas resumidas para um dataframe do pandas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para calcular estat\u00edsticas resumidas para vari\u00e1veis em um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: calcular estat\u00edsticas resumidas para todas as vari\u00e1veis num\u00e9ricas<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">describe<\/span> ()\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: calcular estat\u00edsticas resumidas para todas as vari\u00e1veis de string<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">describe<\/span> (include=' <span style=\"color: #ff0000;\">object<\/span> ')<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 3: calcular estat\u00edsticas resumidas agrupadas por uma vari\u00e1vel<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">group_column<\/span> '). <span style=\"color: #3366ff;\">mean<\/span> ()\n\ndf. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">group_column<\/span> '). <span style=\"color: #3366ff;\">median<\/span> ()\n\ndf. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">group_column<\/span> '). <span style=\"color: #3366ff;\">max<\/span> ()\n\n...<\/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<span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', 'B'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [18, 22, 19, 14, 14, 11, 20, 28, 30],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, np.nan, 7, 9, 12, 9, 9, 4, 5],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, np.nan, 6]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points assists rebounds\n0 to 18 5.0 11.0\n1 to 22 NaN 8.0\n2 A 19 7.0 10.0\n3 A 14 9.0 6.0\n4 B 14 12.0 6.0\n5 B 11 9.0 5.0\n6 B 20 9.0 9.0\n7 B 28 4.0 NaN\n8 B 30 5.0 6.0\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: Calcular estat\u00edsticas resumidas para todas as vari\u00e1veis num\u00e9ricas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como calcular estat\u00edsticas resumidas para cada vari\u00e1vel num\u00e9rica no DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">describe<\/span> ()\n\n\t   points assists rebounds\ncount 9.000000 8.000000 8.000000\nmean 19.555556 7.500000 7.625000\nstd 6.366143 2.725541 2.199838\nmin 11.000000 4.000000 5.000000\n25% 14,000000 5,000000 6,000000\n50% 19,000000 8,000000 7,000000\n75% 22.000000 9.000000 9.250000\nmax 30.000000 12.000000 11.000000<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Podemos ver as seguintes estat\u00edsticas resumidas para cada uma das tr\u00eas vari\u00e1veis num\u00e9ricas:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>contagem:<\/strong> o n\u00famero de valores diferentes de zero<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>m\u00e9dia<\/strong> : O valor m\u00e9dio<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>std<\/strong> : O desvio padr\u00e3o<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>min:<\/strong> o valor m\u00ednimo<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>25%<\/strong> : O valor no 25\u00ba percentil<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>50%<\/strong> : O valor no percentil 50 (tamb\u00e9m a mediana)<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>75%<\/strong> : O valor no percentil 75<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>m\u00e1x<\/strong> : O valor m\u00e1ximo<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: Calcular estat\u00edsticas resumidas para todas as vari\u00e1veis de string<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como calcular estat\u00edsticas resumidas para cada vari\u00e1vel de string no DataFrame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">describe<\/span> (include=' <span style=\"color: #ff0000;\">object<\/span> ')\n\n\tteam\ncount 9\nsingle 2\ntop B\nfreq 5<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Podemos ver as seguintes estat\u00edsticas resumidas para a vari\u00e1vel string em nosso DataFrame:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>contagem<\/strong> : o n\u00famero de valores diferentes de zero<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>\u00fanico<\/strong> : o n\u00famero de valores \u00fanicos<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>no topo:<\/strong> o valor mais frequente<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>freq<\/strong> : O n\u00famero de valores que aparecem com mais frequ\u00eancia<\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 3: Calcular estat\u00edsticas resumidas agrupadas por uma vari\u00e1vel<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como calcular o valor m\u00e9dio de todas as vari\u00e1veis num\u00e9ricas, agrupadas por vari\u00e1vel <strong>de equipe<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">team<\/span> '). <span style=\"color: #3366ff;\">mean<\/span> ()\n\n\tpoints assists rebounds\nteam\t\t\t\nA 18.25 7.0 8.75\nB 20.60 7.8 6.50\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A sa\u00edda exibe o valor m\u00e9dio das vari\u00e1veis de <strong>pontos<\/strong> , <strong>assist\u00eancias<\/strong> e <strong>rebotes<\/strong> , agrupadas por vari\u00e1vel <strong>de equipe<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Observe que podemos usar sintaxe semelhante para calcular uma estat\u00edstica de resumo diferente, como a mediana:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">team<\/span> '). <span style=\"color: #3366ff;\">median<\/span> ()\n\n\tpoints assists rebounds\nteam\t\t\t\nA 18.5 7.0 9.0\nB 20.0 9.0 6.0<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A sa\u00edda exibe o valor mediano das vari\u00e1veis de <strong>pontos<\/strong> , <strong>assist\u00eancias<\/strong> e <strong>rebotes<\/strong> , agrupadas por vari\u00e1vel <strong>de equipe<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o <strong>description<\/strong> no pandas <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.DataFrame.describe.html\" target=\"_blank\" rel=\"noopener\">aqui<\/a> .<\/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 realizar outras tarefas comuns do panda:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/grupo-de-pandas-por-numero\/\" target=\"_blank\" rel=\"noopener\">Como contar avistamentos de grupos em pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/maximo-por-grupo-de-pandas\/\" target=\"_blank\" rel=\"noopener\">Como encontrar o valor m\u00e1ximo por grupo no Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/remover-valores-discrepantes-python\/\" target=\"_blank\" rel=\"noopener\">Como identificar valores discrepantes em pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para calcular estat\u00edsticas resumidas para vari\u00e1veis em um DataFrame do pandas: M\u00e9todo 1: calcular estat\u00edsticas resumidas para todas as vari\u00e1veis num\u00e9ricas df. describe () M\u00e9todo 2: calcular estat\u00edsticas resumidas para todas as vari\u00e1veis de string df. describe (include=&#8217; object &#8216;) M\u00e9todo 3: calcular estat\u00edsticas resumidas agrupadas por uma vari\u00e1vel [&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-2869","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 calcular estat\u00edsticas resumidas para um DataFrame Pandas - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular estat\u00edsticas resumidas para um DataFrame do pandas, 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\/estatisticas-resumidas-do-pandas\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular estat\u00edsticas resumidas para um DataFrame Pandas - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular estat\u00edsticas resumidas para um DataFrame do pandas, com um exemplo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-20T08:06:34+00:00\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/\",\"url\":\"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/\",\"name\":\"Como calcular estat\u00edsticas resumidas para um DataFrame Pandas - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-20T08:06:34+00:00\",\"dateModified\":\"2023-07-20T08:06:34+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular estat\u00edsticas resumidas para um DataFrame do pandas, com um exemplo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/estatisticas-resumidas-do-pandas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular estat\u00edsticas resumidas para um dataframe do pandas\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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