{"id":3653,"date":"2023-07-16T07:59:03","date_gmt":"2023-07-16T07:59:03","guid":{"rendered":"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/"},"modified":"2023-07-16T07:59:03","modified_gmt":"2023-07-16T07:59:03","slug":"escala-de-registro-do-histograma-do-pandas","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/","title":{"rendered":"Pandas: como criar um histograma com escala logar\u00edtmica"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os argumentos <b>logx<\/b> e <strong>logy<\/strong> para criar histogramas com escalas logar\u00edtmicas nos eixos x e y, respectivamente, em pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create histogram with log scale on x-axis<\/span>\ndf[' <span style=\"color: #ff0000;\">my_column<\/span> ']. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">hist<\/span> ', logx= <span style=\"color: #008000;\">True<\/span> )\n\n<span style=\"color: #008080;\">#create histogram with log scale on y-axis<\/span>\ndf[' <span style=\"color: #ff0000;\">my_column<\/span> ']. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">hist<\/span> ', logy= <span style=\"color: #008000;\">True<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como usar esses argumentos para criar histogramas com escalas logar\u00edtmicas em pandas.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Relacionado:<\/strong> <a href=\"https:\/\/statorials.org\/pt\/quando-usar-a-escala-logaritmica\/\" target=\"_blank\" rel=\"noopener\">Quando voc\u00ea deve usar uma escala logar\u00edtmica em gr\u00e1ficos?<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo: Crie um histograma com escala logar\u00edtmica no Pandas<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Digamos que temos o seguinte DataFrame do pandas com 5.000 linhas:<\/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<span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">\n#make this example reproducible\n<\/span>n.p. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">seeds<\/span> (1)\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">values<\/span> ': np. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">lognormal<\/span> (size= <span style=\"color: #008000;\">5000<\/span> )})\n\n<span style=\"color: #008080;\">#view first five rows of DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> ( <span style=\"color: #3366ff;\">df.head<\/span> ())\n\n     values\n0 5.075096\n1 0.542397\n2 0.589682\n3 0.341992\n4 2.375974<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para criar um histograma com uma escala linear no eixo x e no eixo y:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create histogram\n<\/span>df[' <span style=\"color: #ff0000;\">values<\/span> ']. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">hist<\/span> ')\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29976 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/echelle-log1.jpg\" alt=\"\" width=\"544\" height=\"383\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Atualmente, tanto o eixo x quanto o eixo y t\u00eam uma escala linear.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar o argumento <strong>logx=True<\/strong> para converter o eixo x em uma escala logar\u00edtmica:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create histogram with log scale on x-axis\n<\/span>df[' <span style=\"color: #ff0000;\">values<\/span> ']. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">hist<\/span> ', logx= <span style=\"color: #008000;\">True<\/span> )\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-29978\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/echelle-log2.jpg\" alt=\"histograma de pandas com escala logar\u00edtmica no eixo x\" width=\"538\" height=\"390\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Os valores no eixo x agora seguem uma escala logar\u00edtmica.<\/span><\/p>\n<p> <span style=\"color: #000000;\">E podemos usar o argumento <strong>logy=True<\/strong> para converter o eixo y em uma escala logar\u00edtmica:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create histogram with log scale on y-axis\n<\/span>df[' <span style=\"color: #ff0000;\">values<\/span> ']. <span style=\"color: #3366ff;\">plot<\/span> (kind=' <span style=\"color: #ff0000;\">hist<\/span> ', logy= <span style=\"color: #008000;\">True<\/span> )<\/span><\/span><\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-29977\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/echelle-log3.jpg\" alt=\"histograma de pandas com escala logar\u00edtmica no eixo y\" width=\"531\" height=\"381\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Os valores no eixo y agora seguem uma escala logar\u00edtmica.<\/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 tarefas comuns em pandas:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/histograma-do-panda\/\" target=\"_blank\" rel=\"noopener\">Como criar um histograma a partir do Pandas DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/histograma-da-serie-panda\/\" target=\"_blank\" rel=\"noopener\">Como criar um histograma a partir de uma s\u00e9rie Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/histograma-de-pandas-por-grupo\/\" target=\"_blank\" rel=\"noopener\">Como tra\u00e7ar histogramas por grupo no Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os argumentos logx e logy para criar histogramas com escalas logar\u00edtmicas nos eixos x e y, respectivamente, em pandas: #create histogram with log scale on x-axis df[&#8216; my_column &#8216;]. plot (kind=&#8217; hist &#8216;, logx= True ) #create histogram with log scale on y-axis df[&#8216; my_column &#8216;]. plot (kind=&#8217; hist &#8216;, logy= True [&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-3653","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 criar um histograma com escala logar\u00edtmica - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como criar um histograma com escala logar\u00edtmica em 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\/escala-de-registro-do-histograma-do-pandas\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandas: Como criar um histograma com escala logar\u00edtmica - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como criar um histograma com escala logar\u00edtmica em pandas, com um exemplo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-16T07:59:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/echelle-log1.jpg\" \/>\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=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/\",\"url\":\"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/\",\"name\":\"Pandas: Como criar um histograma com escala logar\u00edtmica - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-16T07:59:03+00:00\",\"dateModified\":\"2023-07-16T07:59:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como criar um histograma com escala logar\u00edtmica em pandas, com um exemplo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/escala-de-registro-do-histograma-do-pandas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pandas: como criar um histograma com escala logar\u00edtmica\"}]},{\"@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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