{"id":21172,"date":"2020-11-25T17:14:02","date_gmt":"2020-11-25T17:14:02","guid":{"rendered":"https:\/\/datascientest.com\/?p=21172"},"modified":"2024-07-31T14:47:32","modified_gmt":"2024-07-31T14:47:32","slug":"programmer-python-exemple","status":"publish","type":"post","link":"https:\/\/datascientest.com\/programmer-python-exemple","title":{"rendered":"La programmation python pour les nuls &#8211; Episode 4"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"21172\" class=\"elementor elementor-21172\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-23d1e15 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"23d1e15\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fbd4619\" data-id=\"fbd4619\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8e6af22 elementor-widget elementor-widget-text-editor\" data-id=\"8e6af22\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span style=\"color: #000000;\"><strong>Table des mati\u00e8res:<\/strong><\/span><\/p><ol><li><span style=\"color: #000000;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmer-en-python\">Episode 1<\/a> &#8211; <a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmer-en-python#introductionpython\">Introduction<\/a> &#8211;<a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmer-en-python#variables\">Variables<\/a> &#8211;<a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmer-en-python#types\">types<\/a>\u00a0<\/span><\/li><li><span style=\"text-decoration: underline;\"><span style=\"color: #000000; text-decoration: underline;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmation-python-fonctions-operateurs-boucles\" target=\"_blank\" rel=\"noopener\">Episode<\/a><\/span><\/span><span style=\"color: #000000;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmation-python-fonctions-operateurs-boucles\" target=\"_blank\" rel=\"noopener\"> 2<\/a><\/span><span style=\"color: #000000;\">&#8211;<a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmation-python-fonctions-operateurs-boucles#operateurs\" target=\"_blank\" rel=\"noopener\">Op\u00e9rateurs<\/a>&#8211;<a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmation-python-fonctions-operateurs-boucles#boucles\" target=\"_blank\" rel=\"noopener\">Boucles<\/a>&#8211;<a style=\"color: #000000; text-decoration: underline;\" href=\"https:\/\/datascientest.com\/programmation-python-fonctions-operateurs-boucles#fonctions\" target=\"_blank\" rel=\"noopener\">Fonctions<\/a><\/span><\/li><li><span style=\"color: #000000;\"><span style=\"text-decoration: underline;\"><a style=\"color: #000000;\" href=\"https:\/\/datascientest.com\/data-cleaning\" target=\"_blank\" rel=\"noopener\">Episode 3<\/a> <\/span>&#8211;<span style=\"text-decoration: underline;\"><a style=\"color: #000000;\" href=\"https:\/\/datascientest.com\/data-cleaning#importdesdonnees\" target=\"_blank\" rel=\"noopener\"> Import des donn\u00e9es<\/a><\/span> &#8211;<span style=\"text-decoration: underline;\"><a style=\"color: #000000;\" href=\"https:\/\/datascientest.com\/data-cleaning#datacleaning\" target=\"_blank\" rel=\"noopener\">Data cleaning<\/a> <\/span>&#8211;<span style=\"text-decoration: underline;\"> <a style=\"color: #000000;\" href=\"https:\/\/datascientest.com\/data-cleaning#dataprocessing\" target=\"_blank\" rel=\"noopener\">Data processing<\/a><\/span><\/span><\/li><li><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"https:\/\/datascientest.com\/exemple-programme-python\"><span style=\"text-decoration: underline;\">Episode 4<\/span><\/a><\/span><ol><li><a href=\"#bibliothequepython\">Import des biblioth\u00e8ques Python \u200b<\/a><\/li><li><a href=\"#donneespython\">Import des donn\u00e9es<\/a><\/li><li><a href=\"#valeursmanquantes\">Gestion des valeurs manquantes\u00a0<\/a><\/li><\/ol><\/li><li><span style=\"text-decoration: underline;\"><span style=\"color: #000000;\"><a style=\"color: #000000; text-decoration: underline;\" href=\"#cheatsheet\">Cheat Sheet Python<\/a><\/span><\/span><\/li><\/ol>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1341cf7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1341cf7\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4b3e028\" data-id=\"4b3e028\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8f988fb elementor-widget elementor-widget-heading\" data-id=\"8f988fb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Pour ce dernier volet nous allons mettre en pratique les m\u00e9thodes vues pr\u00e9c\u00e9demment afin de pr\u00e9parer un jeu de donn\u00e9es. D\u00e9marrons tout de suite cet exemple de programme Python :<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7950077 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7950077\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3de78bd\" data-id=\"3de78bd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-97714c0 elementor-widget elementor-widget-menu-anchor\" data-id=\"97714c0\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\nbody.elementor-page .elementor-widget-menu-anchor{margin-bottom:0}<\/style>\t\t<div id=\"bibliothequepython\" class=\"elementor-menu-anchor\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7373184 elementor-widget elementor-widget-heading\" data-id=\"7373184\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Import des biblioth\u00e8ques Python <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1aa1e51 elementor-widget elementor-widget-text-editor\" data-id=\"1aa1e51\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Nous allons commencer par importer les biblioth\u00e8ques qui serviront pour notre analyse.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-924a0bf elementor-widget elementor-widget-shortcode\" data-id=\"924a0bf\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/9464d6952cba1a57de7847e75b77eb2c.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-efdf914 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"efdf914\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6cd1552\" data-id=\"6cd1552\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-043fed4 elementor-widget elementor-widget-menu-anchor\" data-id=\"043fed4\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"donneespython\" class=\"elementor-menu-anchor\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c25b468 elementor-widget elementor-widget-heading\" data-id=\"c25b468\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Import des donn\u00e9es\n<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2e66050 elementor-widget elementor-widget-text-editor\" data-id=\"2e66050\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">A pr\u00e9sent nous allons importer nos donn\u00e9es brutes et observer les premi\u00e8res lignes de notre dataset.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef8bd20 elementor-widget elementor-widget-shortcode\" data-id=\"ef8bd20\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/de84f91b274271ce28812ea96cb32a75.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4b607d6 elementor-widget elementor-widget-image\" data-id=\"4b607d6\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"103\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image1-1.png\" class=\"attachment-large size-large wp-image-21198\" alt=\"import des donn\u00e9es python\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image1-1.png 512w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image1-1-300x60.png 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-138d42a elementor-widget elementor-widget-text-editor\" data-id=\"138d42a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Pour avoir des informations sur les donn\u00e9es on peut utiliser la m\u00e9thode suivante:<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-102f9e9 elementor-widget elementor-widget-shortcode\" data-id=\"102f9e9\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/4a0b8be51a9a632f3bc8298f30115e2a.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d149dc5 elementor-widget elementor-widget-image\" data-id=\"d149dc5\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"411\" height=\"377\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image2-1.png\" class=\"attachment-large size-large wp-image-21200\" alt=\"import des donn\u00e9es python\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image2-1.png 411w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image2-1-300x275.png 300w\" sizes=\"(max-width: 411px) 100vw, 411px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-75a692c elementor-widget elementor-widget-text-editor\" data-id=\"75a692c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Affichage de la description des donn\u00e9es sur les variables num\u00e9riques<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-930e07b elementor-widget elementor-widget-shortcode\" data-id=\"930e07b\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/716fc54964b1e0fe488e465ef3f6b9c5.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96c146b elementor-widget elementor-widget-image\" data-id=\"96c146b\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"418\" height=\"246\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image3.png\" class=\"attachment-large size-large wp-image-21201\" alt=\"import des donn\u00e9es python\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image3.png 418w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image3-300x177.png 300w\" sizes=\"(max-width: 418px) 100vw, 418px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d9e9c91 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d9e9c91\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c3a355b\" data-id=\"c3a355b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e2b718f elementor-widget elementor-widget-menu-anchor\" data-id=\"e2b718f\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"valeursmanquantes\" class=\"elementor-menu-anchor\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fdb204 elementor-widget elementor-widget-heading\" data-id=\"3fdb204\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Gestion des valeurs manquantes\u00a0<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5452b35 elementor-widget elementor-widget-text-editor\" data-id=\"5452b35\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Nous allons \u00e0 pr\u00e9sent voir le nombre de valeurs manquantes pour chaque colonnes.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d86b8b6 elementor-widget elementor-widget-shortcode\" data-id=\"d86b8b6\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/e7446813234aba2c90730eed48cf3d27.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b5a1d0 elementor-widget elementor-widget-image\" data-id=\"0b5a1d0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"344\" height=\"512\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image4.png\" class=\"attachment-full size-full wp-image-21204\" alt=\"import des donn\u00e9es python\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image4.png 344w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image4-202x300.png 202w\" sizes=\"(max-width: 344px) 100vw, 344px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3809afc elementor-widget elementor-widget-text-editor\" data-id=\"3809afc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Au vu de ces r\u00e9sultats, on peut dans un premier temps supprimer les colonnes avec plus de 50% de valeurs manquantes : la colonne &lsquo;Alley&rsquo;.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e84ace8 elementor-widget elementor-widget-shortcode\" data-id=\"e84ace8\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/98ef8bd54b0ab9003afef13a922dd4a7.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9247645 elementor-widget elementor-widget-text-editor\" data-id=\"9247645\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Apr\u00e8s observation des colonnes, on peut dissocier en deux cat\u00e9gories les colonnes en fonction de leur type: Les types object et les autres (int, float&#8230;).<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-addf24d elementor-widget elementor-widget-shortcode\" data-id=\"addf24d\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/529d40991f0474c1ebb5413e167ba453.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2a7372c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2a7372c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a377299\" data-id=\"a377299\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1223e23 elementor-widget elementor-widget-text-editor\" data-id=\"1223e23\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Des traitements diff\u00e9rents sont \u00e0 appliquer en fonction du type<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7335d5c elementor-widget elementor-widget-heading\" data-id=\"7335d5c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Les donn\u00e9es cat\u00e9gorielles :<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff1eeb3 elementor-widget elementor-widget-shortcode\" data-id=\"ff1eeb3\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/323f8485faacb72fe3ba6d1ad6c32b99.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53b53ed elementor-widget elementor-widget-text-editor\" data-id=\"53b53ed\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Il est int\u00e9ressant d&rsquo;observer les valeurs uniques prises par les variables cat\u00e9gorielles:<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e1e4000 elementor-widget elementor-widget-shortcode\" data-id=\"e1e4000\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/c714511dab1e4052c0752d3c6c2e9757.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7ab2c8 elementor-widget elementor-widget-image\" data-id=\"c7ab2c8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"254\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image5-1024x325.png\" class=\"attachment-large size-large wp-image-21259\" alt=\"import des donn\u00e9es python\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image5-1024x325.png 1024w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image5-300x95.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image5-768x244.png 768w, https:\/\/datascientest.com\/wp-content\/uploads\/2020\/11\/image5.png 1436w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0510c3a elementor-widget elementor-widget-heading\" data-id=\"0510c3a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Les donn\u00e9es num\u00e9riques :<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae2f7d4 elementor-widget elementor-widget-shortcode\" data-id=\"ae2f7d4\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/gtordjma\/026adffa30802ebcfc01c80e4d211cd2.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-721e6e0 elementor-widget elementor-widget-text-editor\" data-id=\"721e6e0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Dans la cat\u00e9gorie variables num\u00e9riques, on observe 259 valeurs manquantes pour la variable \u2018LotFrontage\u2019.<\/span><\/p><p><span style=\"font-weight: 400;\">Dans le cas de variables cat\u00e9gorielles, il est possible de remplacer les valeurs manquantes d\u2019une colonne par l&rsquo;\u00e9l\u00e9ment le plus fr\u00e9quent gr\u00e2ce \u00e0 la m\u00e9thode mode.<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\">Pour les variables num\u00e9riques, il est d\u2019usage de remplacer ces valeurs manquantes par la moyenne de la variable.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-282f892 elementor-widget elementor-widget-shortcode\" data-id=\"282f892\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-shortcode\"><script src=\"https:\/\/gist.github.com\/YOHANCOHENCODES\/c5f8f7ff78d6145a3a7239138ef11814.js\"><\/script><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8332870 elementor-widget elementor-widget-text-editor\" data-id=\"8332870\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Nous avons \u00e0 pr\u00e9sent nettoy\u00e9 notre dataset<\/span><span style=\"font-weight: 400;\">. Bien \u00e9videmment il existe encore de nombreuses techniques afin de bien pr\u00e9parer son jeu de donn\u00e9es avant de l\u2019analyser.<\/span><\/p><p><span style=\"font-weight: 400;\">Dans cet exemple de programme Python, la chose importante que nous souhaitons souligner est que cette<\/span><b> \u00e9tape de pr\u00e9paration des donn\u00e9es est primordiale<\/b><span style=\"font-weight: 400;\">. Si votre dataset n\u2019est pas bien pr\u00e9par\u00e9, les r\u00e9sultats obtenus apr\u00e8s analyse ne pourront pas \u00eatre tr\u00e8s concluants.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d36baa6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d36baa6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b313893\" data-id=\"b313893\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0ac31d5 elementor-widget elementor-widget-menu-anchor\" data-id=\"0ac31d5\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"cheatsheet\" class=\"elementor-menu-anchor\"><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ba4443b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ba4443b\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f94db56\" data-id=\"f94db56\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-162a1cf elementor-widget elementor-widget-heading\" data-id=\"162a1cf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Cheat Sheet Python :<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-963a7b0 elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"963a7b0\" data-element_type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<link rel=\"stylesheet\" href=\"https:\/\/datascientest.com\/wp-content\/uploads\/elementor\/css\/custom-pro-widget-call-to-action.min.css?ver=1730971027\">\t\t<a class=\"elementor-cta\" href=\"https:\/\/datascientest.com\/wp-content\/uploads\/2020\/12\/Cheat-Sheet-credit.jpg\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/datascientest.com\/wp-content\/uploads\/2020\/12\/Cheat-Sheet-credit-724x1024.jpg);\" role=\"img\" aria-label=\"Cheat Sheet credit\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item \">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-sm\">\n\t\t\t\t\t\tT\u00e9l\u00e9charger\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-02f0c18 elementor-widget elementor-widget-text-editor\" data-id=\"02f0c18\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Merci de nous avoir suivi \u00e0 travers ces 4 semaines pour d\u00e9couvrir le python et les <\/span><b>premi\u00e8res phases du traitement des donn\u00e9es<\/b><span style=\"font-weight: 400;\">. Vous souhaitez en apprendre plus sur la programmation python et mettre en place des mod\u00e8les de Machine Learning ?\u00a0 Nos formations sont l\u00e0 pour \u00e7a !\u00a0<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-be89638 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"be89638\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9couvrir nos formations<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Table des mati\u00e8res: Episode 1 &#8211; Introduction &#8211;Variables &#8211;types&nbsp; Episode 2&#8211;Op\u00e9rateurs&#8211;Boucles&#8211;Fonctions Episode 3 &#8211; Import des donn\u00e9es &#8211;Data cleaning &#8211; Data processing Episode 4 Import des biblioth\u00e8ques Python \u200b Import des donn\u00e9es Gestion des valeurs manquantes&nbsp; Cheat Sheet Python Pour ce dernier volet nous allons mettre en pratique les m\u00e9thodes vues pr\u00e9c\u00e9demment afin de pr\u00e9parer [&hellip;]<\/p>\n","protected":false},"author":78,"featured_media":21386,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Programme python : D\u00e9couvrez cet exemple en programmation Python !<\/title>\n<meta name=\"description\" content=\"Dans cet article vous allez d\u00e9couvrir un exemple de programme sur python . 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