{"id":5441,"date":"2025-07-15T13:34:44","date_gmt":"2025-07-15T13:34:44","guid":{"rendered":"https:\/\/functiontranslator.com\/betadist\/"},"modified":"2021-02-26T09:50:24","modified_gmt":"2021-02-26T09:50:24","slug":"betadist","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/betadist\/","title":{"rendered":"BETADIST"},"content":{"rendered":"<h2>P\u0159ehled funkc\u00ed pro distribuci beta<\/h2>\n<p>Funkce pro distribuci beta je u\u017eite\u010dn\u00fd statistick\u00fd n\u00e1stroj, kter\u00fd se vyu\u017e\u00edv\u00e1 k modelov\u00e1n\u00ed prom\u011bnn\u00fdch s omezen\u00fdmi rozsahy, jako nap\u0159\u00edklad pravd\u011bpodobnosti. Tato funkce je dostupn\u00e1 jak v Microsoft Excel, tak v Google Sheets a vyzna\u010duje se m\u00edrn\u011b odli\u0161n\u00fdmi n\u00e1zvy a syntaxemi v obou aplikac\u00edch.<\/p>\n<h2>Syntaxe a p\u0159\u00edklady<\/h2>\n<p>V Microsoft Excel je funkce distribuce beta dostupn\u00e1 pod n\u00e1zvem <code>BETADIST<\/code> ve star\u0161\u00edch verz\u00edch a jako <code>BETA.DIST<\/code> v nov\u011bj\u0161\u00edch verz\u00edch.<\/p>\n<pre><code>=BETA.DIST(x, alpha, beta, A, B, [cumulative])<\/code><\/pre>\n<p>Kde:<\/p>\n<ul>\n<li><code>x<\/code> \u2014 hodnota, pro kterou se funkce vypo\u010d\u00edt\u00e1v\u00e1<\/li>\n<li><code>alpha<\/code> \u2014 prvn\u00ed parametr tvaru rozd\u011blen\u00ed<\/li>\n<li><code>beta<\/code> \u2014 druh\u00fd parametr tvaru rozd\u011blen\u00ed<\/li>\n<li><code>A<\/code> \u2014 doln\u00ed hranice intervalu pro x<\/li>\n<li><code>B<\/code> \u2014 horn\u00ed hranice intervalu pro x<\/li>\n<li><code>cumulative<\/code> \u2014 logick\u00e1 hodnota ur\u010duj\u00edc\u00ed, zda funkce vr\u00e1t\u00ed kumulativn\u00ed distribu\u010dn\u00ed funkci (TRUE) nebo hustotu pravd\u011bpodobnosti (FALSE)<\/li>\n<\/ul>\n<p>Ve Google Sheets je podobn\u00e1 funkce dostupn\u00e1 pod n\u00e1zvem <code>BETADIST<\/code>.<\/p>\n<pre><code>=BETADIST(x, alpha, beta, [A], [B])<\/code><\/pre>\n<p>Argumenty <code>A<\/code> a <code>B<\/code> jsou nepovinn\u00e9 a pokud nejsou specifikov\u00e1ny, v\u00fdchoz\u00ed interval je od 0 do 1.<\/p>\n<h2>P\u0159\u00edklady u\u017eit\u00ed<\/h2>\n<h2>\u00daloha 1: Hodnocen\u00ed pravd\u011bpodobnosti dosa\u017een\u00ed c\u00edl\u016f<\/h2>\n<p>P\u0159edstavte si, \u017ee analyzujeme \u00fasp\u011bch prodejn\u00edho t\u00fdmu s c\u00edlem v rozmez\u00ed od 0 do 120 prodej\u016f za m\u011bs\u00edc. Z historick\u00fdch dat zn\u00e1me, \u017ee distribuce prodej\u016f m\u00e1 beta rozd\u011blen\u00ed s parametry <code>alpha<\/code> = 2 a <code>beta<\/code> = 5.<\/p>\n<p>Funkce BETA.DIST v Excelu n\u00e1m umo\u017en\u00ed vypo\u010d\u00edtat pravd\u011bpodobnost, \u017ee t\u00fdm dos\u00e1hne minim\u00e1ln\u011b 100 prodej\u016f za m\u011bs\u00edc.<\/p>\n<pre><code>=1 - BETA.DIST(100, 2, 5, 0, 120, TRUE)<\/code><\/pre>\n<p>Tento v\u00fdpo\u010det uk\u00e1\u017ee kumulativn\u00ed pravd\u011bpodobnost, \u017ee t\u00fdm dos\u00e1hne m\u00e9n\u011b ne\u017e 100 prodej\u016f. Pravd\u011bpodobnost opa\u010dn\u00e9 ud\u00e1losti z\u00edsk\u00e1me tak, \u017ee v\u00fdsledek ode\u010dteme od 1.<\/p>\n<h2>\u00daloha 2: Srovn\u00e1n\u00ed distribuce mezi t\u00fdmy<\/h2>\n<p>Pokud m\u00e1me dva prodejn\u00ed t\u00fdmy s rozd\u00edln\u00fdmi hodnotami alpha a beta, m\u016f\u017eeme funkci BETA.DIST pou\u017e\u00edt k porovn\u00e1n\u00ed pravd\u011bpodobnost\u00ed dosa\u017een\u00ed stejn\u00fdch prodejn\u00edch c\u00edl\u016f. T\u00fdm A m\u00e1 parametry <code>alpha=3<\/code> a <code>beta=4<\/code>, zat\u00edmco T\u00fdm B m\u00e1 <code>alpha=2<\/code> a <code>beta=6<\/code>.<\/p>\n<p>Vypo\u010dty pro dosa\u017een\u00ed 80 prodej\u016f vypadaj\u00ed n\u00e1sledovn\u011b:<\/p>\n<pre><code>=BETA.DIST(80, 3, 4, 0, 120, TRUE) \/\/ Pravd\u011bpodobnost pro T\u00fdm A =BETA.DIST(80, 2, 6, 0, 120, TRUE) \/\/ Pravd\u011bpodobnost pro T\u00fdm B<\/code><\/pre>\n<p>Porovn\u00e1n\u00edm t\u011bchto v\u00fdsledk\u016f zjist\u00edme, kter\u00fd t\u00fdm m\u00e1 vy\u0161\u0161\u00ed \u0161anci dos\u00e1hnout 80 prodej\u016f, a m\u016f\u017eeme d\u00e1le zkoumat p\u0159\u00ed\u010diny rozd\u00edl\u016f ve distribuci mezi t\u00fdmy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vr\u00e1t\u00ed hodnotu sou\u010dtov\u00e9ho rozd\u011blen\u00ed beta<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[289],"tags":[],"class_list":["post-5441","post","type-post","status-publish","format-standard","hentry","category-kompatibilita"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Funkce BETADIST v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije BETADIST u Excelu i Google tablicama. 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