{"id":5583,"date":"2025-07-15T13:34:45","date_gmt":"2025-07-15T13:34:45","guid":{"rendered":"https:\/\/functiontranslator.com\/forecast-ets\/"},"modified":"2021-02-26T09:55:38","modified_gmt":"2021-02-26T09:55:38","slug":"forecast-ets","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/forecast-ets\/","title":{"rendered":"FORECAST.ETS"},"content":{"rendered":"
 
\u00davod do prognostick\u00e9 funkce pro anal\u00fdzu \u010dasov\u00fdch \u0159ad<\/h2> 
Funkce FORECAST.ETS<\/strong> v MS Excel a Google Sheets je pokro\u010dil\u00fdm n\u00e1strojem pro p\u0159edpov\u011bdi budouc\u00edch hodnot z \u010dasov\u00fdch \u0159ad. Tato funkce aplikuje metody jako exponenci\u00e1ln\u00ed vyhlazov\u00e1n\u00ed a dal\u0161\u00ed techniky pro modelov\u00e1n\u00ed sez\u00f3nn\u00edch oscilac\u00ed v datech.<\/p> 
Syntaxe a pou\u017eit\u00ed funkce<\/h2> 
Syntax funkce FORECAST.ETS<\/code> je n\u00e1sleduj\u00edc\u00ed:<\/p> 
 FORECAST.ETS(ter\u010dov\u00fd_datum, hodnoty, \u010dasov\u00e1_osa, [sez\u00f3nnost], [data_kompletace], [shoda])<\/code> <\/pre>\n
    \n
  • ter\u010dov\u00fd_datum<\/strong>: Datum nebo \u010dasov\u00fd bod, pro kter\u00fd se prov\u00e1d\u00ed predikce.<\/li>\n
  • hodnoty<\/strong>: Pole nebo rozsah bun\u011bk, kter\u00e9 obsahuj\u00ed historick\u00e9 data z\u00e1visl\u00e9 prom\u011bnn\u00e9.<\/li>\n
  • \u010dasov\u00e1_osa<\/strong>: Pole nebo rozsah \u010dasov\u00fdch bod\u016f odpov\u00eddaj\u00edc\u00ed hodnot\u00e1m.<\/li>\n
  • [sez\u00f3nnost]<\/strong>: Nepovinn\u00fd argument specifikuj\u00edc\u00ed d\u00e9lku sez\u00f3nn\u00edho cyklu v datech. Je-li vynech\u00e1n, je sez\u00f3nnost automaticky detekov\u00e1na.<\/li>\n
  • [data_kompletace]<\/strong>: Nepovinn\u00fd argument umo\u017e\u0148uj\u00edc\u00ed manipulaci se zpracov\u00e1n\u00edm chyb\u011bj\u00edc\u00edch dat.<\/li>\n
  • [shoda]<\/strong>: Nepovinn\u00fd argument ovliv\u0148uj\u00edc\u00ed, jak funkce zpracov\u00e1v\u00e1 opakuj\u00edc\u00ed se \u010dasov\u00e9 body v '\u010dasov\u00e1_osa'.<\/li>\n<\/ul>\n
    P\u0159\u00edklady pou\u017eit\u00ed<\/h2>\n
    Funkce FORECAST.ETS<\/strong> m\u016f\u017ee b\u00fdt pou\u017eita pro r\u016fzn\u00e9 \u00fa\u010dely p\u0159i anal\u00fdze \u010dasov\u00fdch \u0159ad. Zde jsou n\u011bkter\u00e9 praktick\u00e9 p\u0159\u00edklady.<\/p>\n
    P\u0159edpov\u00edd\u00e1n\u00ed tr\u017eeb<\/h2>\n
    P\u0159edpokl\u00e1dejme, \u017ee m\u00e1me m\u011bs\u00ed\u010dn\u00ed tr\u017eby za posledn\u00ed t\u0159i roky a chceme p\u0159edpov\u011bd\u011bt tr\u017eby na nadch\u00e1zej\u00edc\u00ed m\u011bs\u00edc. Data kon\u010d\u00ed v prosinci 2023 a tr\u017eby jsou zaznamen\u00e1ny ve sloupci B s p\u0159\u00edslu\u0161n\u00fdmi daty ve sloupci A. Predikce tr\u017eeb na leden 2024 by se prov\u00e1d\u011bla takto:<\/p>\n
     =FORECAST.ETS(DATE(2024,1,1), B2:B37, A2:A37)<\/code> <\/pre>\n
    Tento v\u00fdpo\u010det ur\u010duje odhad tr\u017eeb pro leden 2024 na z\u00e1klad\u011b historick\u00fdch dat z let 2021-2023.<\/p>\n
    Anal\u00fdza trend\u016f spot\u0159eby energie<\/h2>\n
    V dal\u0161\u00edm sc\u00e9n\u00e1\u0159i analytik m\u016f\u017ee cht\u00edt analyzovat m\u011bs\u00ed\u010dn\u00ed spot\u0159ebu energie dom\u00e1cnost\u00ed za posledn\u00ed dva roky k identifikaci budouc\u00edch trend\u016f. Data o spot\u0159eb\u011b jsou v sloupci C a odpov\u00eddaj\u00edc\u00ed m\u011bs\u00edce ve sloupci D. Modelace spot\u0159eby pro nadch\u00e1zej\u00edc\u00ed m\u011bs\u00edce by se prov\u00e1d\u011bla takto:<\/p>\n
     =FORECAST.ETS(DATE(2024,2,1), C2:C25, D2:D25)<\/code> <\/pre>\n
    P\u0159edpov\u011b\u010f spot\u0159eby energie pro \u00fanor 2024 je zalo\u017eena na datech z p\u0159edchoz\u00edch dvou let.<\/p>\n
    Tyto p\u0159\u00edklady ukazuj\u00ed, jak funkce FORECAST.ETS<\/strong> umo\u017e\u0148uje efektivn\u00ed pl\u00e1nov\u00e1n\u00ed a rozhodov\u00e1n\u00ed v \u0161irok\u00e9m spektru odv\u011btv\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Vr\u00e1t\u00ed budouc\u00ed hodnotu na z\u00e1klad\u011b existuj\u00edc\u00edch (historick\u00fdch) hodnot pomoc\u00ed verze AAA algoritmu Exponenci\u00e1ln\u00ed vyrovn\u00e1n\u00ed (ETS)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[287],"tags":[],"class_list":["post-5583","post","type-post","status-publish","format-standard","hentry","category-statisticke"],"acf":[],"yoast_head":"\nFunkce FORECAST.ETS v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije FORECAST.ETS u Excelu i Google tablicama. 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