{"id":3654,"date":"2023-07-16T07:59:03","date_gmt":"2023-07-16T07:59:03","guid":{"rendered":"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/"},"modified":"2023-07-16T07:59:03","modified_gmt":"2023-07-16T07:59:03","slug":"scala-del-registro-dellistogramma-dei-panda","status":"publish","type":"post","link":"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/","title":{"rendered":"Panda: come creare un istogramma con scala logaritmica"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Puoi utilizzare gli argomenti <b>logx<\/b> e <strong>logy<\/strong> per creare istogrammi con scale logaritmiche rispettivamente sull&#8217;asse x e sull&#8217;asse y nei panda:<\/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;\">L&#8217;esempio seguente mostra come utilizzare questi argomenti per creare istogrammi con scale logaritmiche nei panda.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Correlato:<\/strong> <a href=\"https:\/\/statorials.org\/it\/quando-utilizzare-la-scala-logaritmica\/\" target=\"_blank\" rel=\"noopener\">Quando dovresti utilizzare una scala logaritmica nei grafici?<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Esempio: crea un istogramma con una scala logaritmica in Pandas<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Diciamo che abbiamo il seguente DataFrame panda con 5000 righe:<\/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;\">Possiamo utilizzare la seguente sintassi per creare un istogramma con una scala lineare sia sull&#8217;asse x che sull&#8217;asse 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=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Sia l&#8217;asse x che l&#8217;asse y hanno attualmente una scala lineare.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Possiamo usare l&#8217;argomento <strong>logx=True<\/strong> per convertire l&#8217;asse x in una scala logaritmica:<\/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=\"istogramma dei panda con scala logaritmica sull'asse x\" width=\"538\" height=\"390\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">I valori sull&#8217;asse x ora seguono una scala logaritmica.<\/span><\/p>\n<p> <span style=\"color: #000000;\">E possiamo usare l&#8217;argomento <strong>logy=True<\/strong> per convertire l&#8217;asse y in una scala logaritmica:<\/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=\"istogramma dei panda con scala logaritmica sull'asse y\" width=\"531\" height=\"381\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">I valori sull&#8217;asse y ora seguono una scala logaritmica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Risorse addizionali<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">I seguenti tutorial spiegano come eseguire altre attivit\u00e0 comuni nei panda:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/it\/istogramma-del-panda\/\" target=\"_blank\" rel=\"noopener\">Come creare un istogramma da Pandas DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/istogramma-della-serie-panda\/\" target=\"_blank\" rel=\"noopener\">Come creare un istogramma da una serie di Panda<\/a><br \/><a href=\"https:\/\/statorials.org\/it\/istogramma-dei-panda-per-gruppo\/\" target=\"_blank\" rel=\"noopener\">Come tracciare istogrammi per gruppo in Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Puoi utilizzare gli argomenti logx e logy per creare istogrammi con scale logaritmiche rispettivamente sull&#8217;asse x e sull&#8217;asse y nei panda: #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":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Panda: Come creare un istogramma con scala logaritmica - Statorials<\/title>\n<meta name=\"description\" content=\"Questo tutorial spiega come creare un istogramma con scala logaritmica nei panda, con un esempio.\" \/>\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\/it\/scala-del-registro-dellistogramma-dei-panda\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Panda: Come creare un istogramma con scala logaritmica - Statorials\" \/>\n<meta property=\"og:description\" content=\"Questo tutorial spiega come creare un istogramma con scala logaritmica nei panda, con un esempio.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/\" \/>\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=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/\",\"url\":\"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/\",\"name\":\"Panda: Come creare un istogramma con scala logaritmica - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/it\/#website\"},\"datePublished\":\"2023-07-16T07:59:03+00:00\",\"dateModified\":\"2023-07-16T07:59:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\"},\"description\":\"Questo tutorial spiega come creare un istogramma con scala logaritmica nei panda, con un esempio.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/it\/scala-del-registro-dellistogramma-dei-panda\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Casa\",\"item\":\"https:\/\/statorials.org\/it\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Panda: come creare un istogramma con scala logaritmica\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/it\/#website\",\"url\":\"https:\/\/statorials.org\/it\/\",\"name\":\"Statorials\",\"description\":\"La tua guida all&#039;alfabetizzazione statistica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/it\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/it\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/it\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Ciao, sono Benjamin, un professore di statistica in pensione diventato insegnante dedicato di Statorials. 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