{"id":6553,"date":"2025-07-15T13:34:48","date_gmt":"2025-07-15T13:34:48","guid":{"rendered":"https:\/\/functiontranslator.com\/prevision-ets-caracteresaisonnier\/"},"modified":"2021-02-26T08:06:38","modified_gmt":"2021-02-26T08:06:38","slug":"forecast-ets-seasonality","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/fr\/forecast-ets-seasonality\/","title":{"rendered":"PREVISION.ETS.CARACTERESAISONNIER"},"content":{"rendered":"<h2>Syntaxe et description<\/h2>\n<p>La fonction <code>PREVISION.ETS.CARACTERESAISONNIER<\/code> est utilis\u00e9e dans Microsoft Excel et Google Sheets pour identifier la p\u00e9riodicit\u00e9 saisonni\u00e8re d&rsquo;une s\u00e9rie temporelle. Cette fonction est utile pour d\u00e9terminer la dur\u00e9e du cycle saisonnier r\u00e9current au sein de vos donn\u00e9es.<\/p>\n<p>Voici la syntaxe de la fonction :<\/p>\n<pre><code>PREVISION.ETS.CARACTERESAISONNIER(donn\u00e9es)<\/code><\/pre>\n<p><strong>Param\u00e8tre :<\/strong><\/p>\n<ul>\n<li><strong>donn\u00e9es<\/strong> : Une plage de cellules contenant la s\u00e9quence historique des donn\u00e9es.<\/li>\n<\/ul>\n<p>Exemple d&rsquo;utilisation :<\/p>\n<pre><code>=PREVISION.ETS.CARACTERESAISONNIER(A2:A100)<\/code><\/pre>\n<h2>Exemples pratiques d\u2019utilisation<\/h2>\n<p><strong>Sc\u00e9nario 1 : Analyse des ventes dans une boutique de glaces<\/strong><\/p>\n<p>En tant que g\u00e9rant d&rsquo;une boutique de glaces, vous souhaitez examiner la saisonnalit\u00e9 des ventes des deux derni\u00e8res ann\u00e9es pour mieux g\u00e9rer vos inventaires. Les donn\u00e9es des ventes mensuelles s&rsquo;\u00e9tendent de janvier 2020 \u00e0 d\u00e9cembre 2021.<\/p>\n<p>Solution :<\/p>\n<ul>\n<li>Saisissez vos donn\u00e9es de ventes mensuelles dans les cellules de A2 \u00e0 A25.<\/li>\n<li>Appliquez la formule <code>=PREVISION.ETS.CARACTERESAISONNIER(A2:A25)<\/code>.<\/li>\n<li>Excel ou Google Sheets calculera et retournera le cycle des ventes, par exemple 12 mois, ce qui r\u00e9v\u00e8le une saisonnalit\u00e9 annuelle.<\/li>\n<\/ul>\n<p>Commentaires :<\/p>\n<p>Un r\u00e9sultat de 12 mois indique que les ventes suivent un cycle annuel, avec probablement une hausse en \u00e9t\u00e9 et une baisse en hiver, vous permettant ainsi de mieux planifier vos achats avant la saison haute.<\/p>\n<p><strong>Sc\u00e9nario 2 : Pr\u00e9vision de la consommation \u00e9lectrique<\/strong><\/p>\n<p>Un fournisseur d&rsquo;\u00e9nergie souhaite analyser la saisonnalit\u00e9 de la consommation \u00e9lectrique pour mieux anticiper les p\u00e9riodes de haute demande.<\/p>\n<p>Solution :<\/p>\n<ul>\n<li>Rassemblez les donn\u00e9es de consommation \u00e9lectrique hebdomadaires sur plusieurs ann\u00e9es.<\/li>\n<li>Supposons que ces donn\u00e9es soient situ\u00e9es dans la plage B2 \u00e0 B200.<\/li>\n<li>Utilisez la formule <code>=PREVISION.ETS.CARACTERESAISONNIER(B2:B200)<\/code> pour d\u00e9terminer le nombre de semaines caract\u00e9risant le mod\u00e8le saisonnier.<\/li>\n<\/ul>\n<p>Commentaires :<\/p>\n<p>Si le r\u00e9sultat renvoy\u00e9 est 52, cela peut sug\u00e9rer une saisonnalit\u00e9 hebdomadaire distincte, offrant une opportunit\u00e9 d&rsquo;examiner de plus pr\u00e8s les variations durant cette p\u00e9riode afin de pr\u00e9voir les pics de consommation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Renvoie la longueur du mod\u00e8le de r\u00e9p\u00e9tition d\u00e9tect\u00e9 par Excel pour la s\u00e9rie chronologique sp\u00e9cifi\u00e9e<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[315],"tags":[],"class_list":["post-6553","post","type-post","status-publish","format-standard","hentry","category-statistiques"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fonction FORECAST.ETS.SEASONALITY (PREVISION.ETS.CARACTERESAISONNIER) dans Excel : comment \u00e7a marche, exemples et syntaxe<\/title>\n<meta name=\"description\" content=\"Pr\u00e9sentation de la fonction FORECAST.ETS.SEASONALITY (PREVISION.ETS.CARACTERESAISONNIER) d\u2019Excel et Google Sheets. 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