{"id":5710,"date":"2025-07-15T13:34:45","date_gmt":"2025-07-15T13:34:45","guid":{"rendered":"https:\/\/functiontranslator.com\/na\/"},"modified":"2021-02-26T10:00:00","modified_gmt":"2021-02-26T10:00:00","slug":"na","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/na\/","title":{"rendered":"NA"},"content":{"rendered":"

Funkce NA()<\/code> v MS Excel a Google Sheets se pou\u017e\u00edv\u00e1 k generov\u00e1n\u00ed hodnoty chyby #N\/A, co\u017e znamen\u00e1 „nen\u00ed k dispozici“ nebo „nen\u00ed k nalezen\u00ed“. Tato hodnota se \u010dasto vyu\u017e\u00edv\u00e1 v tabulk\u00e1ch pro ozna\u010den\u00ed chyb\u011bj\u00edc\u00edch nebo neplatn\u00fdch \u00fadaj\u016f.<\/p>\n

Syntaxe a pou\u017eit\u00ed funkce<\/h2>\n

Syntaxe funkce NA()<\/code> je zcela jednoduch\u00e1, jeliko\u017e tato funkce nepo\u017eaduje \u017e\u00e1dn\u00e9 parametry. Vypad\u00e1 takto:<\/p>\n

=NA()<\/code><\/pre>\n
Vol\u00e1n\u00ed t\u00e9to funkce vr\u00e1t\u00ed hodnotu chyby #N\/A, kter\u00e1 umo\u017e\u0148uje snadn\u00e9 rozpozn\u00e1n\u00ed chyb\u011bj\u00edc\u00edch \u010di nevhodn\u00fdch dat v tabulk\u00e1ch. Pod\u00edvejme se, jak lze funkci prakticky vyu\u017e\u00edt.<\/p>\n
Praktick\u00e9 pou\u017eit\u00ed funkce<\/h2>\n
    \n
  • \u0158\u00edzen\u00ed chyb v dynamick\u00fdch v\u00fdpo\u010dtech:<\/strong> Funkci NA()<\/code> m\u016f\u017eete vyu\u017e\u00edt k signalizaci chyb v bu\u0148k\u00e1ch, kde o\u010dek\u00e1v\u00e1te data, kter\u00e1 v\u0161ak je\u0161t\u011b nejsou k dispozici.<\/li>\n
  • Kontrola dat:<\/strong> Umo\u017e\u0148uje efektivn\u011b ozna\u010dovat chyb\u011bj\u00edc\u00ed hodnoty v rozs\u00e1hl\u00fdch datech pro dal\u0161\u00ed anal\u00fdzu \u010di korekce.<\/li>\n<\/ul>\n
    Praktick\u00e9 \u00falohy<\/h2>\n
    \u00daloha 1: Dynamick\u00e9 reportov\u00e1n\u00ed<\/strong><\/p>\n
    P\u0159edstavte si, \u017ee pracujete s \u010dasov\u00fdmi \u0159adami dat obsahuj\u00edc\u00edmi predikce pro budouc\u00ed m\u011bs\u00edce. V t\u011bchto p\u0159\u00edpadech v\u00e1m data je\u0161t\u011b nemus\u00ed b\u00fdt k dispozici a chcete, aby bu\u0148ky reprezentuj\u00edc\u00ed chyb\u011bj\u00edc\u00ed data ukazovaly chybu #N\/A pro jasn\u00e9 vyk\u00e1z\u00e1n\u00ed nedostupnosti dat.<\/p>\n
     A B C 1 M\u011bs\u00edc Aktu\u00e1ln\u00ed Predikce 2 Leden 500 520 3 \u00danor 480 510 4 B\u0159ezen NA() NA()<\/code><\/pre>\n
    V tomto p\u0159\u00edkladu bu\u0148ka C4, obsahuj\u00edc\u00ed syntaxi =NA()<\/code>, indikuje, \u017ee data pro predikci b\u0159ezna nejsou je\u0161t\u011b k dispozici.<\/p>\n
    \u00daloha 2: Anal\u00fdza datov\u00e9 sady<\/strong><\/p>\n
    M\u00e1te datovou sadu s r\u016fzn\u00fdmi demografick\u00fdmi \u00fadaji, kde chyb\u00ed n\u011bkter\u00e9 informace. Chcete, aby bylo jasn\u011b vid\u011bt, kter\u00e9 informace chyb\u00ed.<\/p>\n\n\n\n\n
    Osoba<\/th>\nV\u011bk<\/th>\nVzd\u011bl\u00e1n\u00ed<\/th>\n<\/tr>\n
    Pavel Nov\u00e1k<\/td>\n29<\/td>\nV\u0160<\/td>\n<\/tr>\n
    Jana \u010cern\u00e1<\/td>\nNA()<\/td>\nS\u0160<\/td>\n<\/tr>\n<\/table>\n
    V p\u0159\u00edkladu v\u00fd\u0161e v\u011bk Jany \u010cern\u00e9 nen\u00ed k dispozici, proto pou\u017e\u00edv\u00e1me =NA()<\/code> ve v\u011bkov\u00e9 bu\u0148ce, co\u017e jasn\u011b indikuje absenci dat.<\/p>\n
    Tyto p\u0159\u00edklady demonstruj\u00ed, jak mocn\u00fdm n\u00e1strojem pro spr\u00e1vnou reprezentaci a anal\u00fdzu dat m\u016f\u017ee b\u00fdt funkce NA()<\/code>.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Vr\u00e1t\u00ed chybovou hodnotu #N\/A (hodnota nedostupn\u00e1)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[291],"tags":[],"class_list":["post-5710","post","type-post","status-publish","format-standard","hentry","category-informacni"],"acf":[],"yoast_head":"\nFunkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije NA u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/functiontranslator.com\/cs\/na\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule\" \/>\n<meta property=\"og:description\" content=\"Opis funkcije NA u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/functiontranslator.com\/cs\/na\/\" \/>\n<meta property=\"og:site_name\" content=\"Function Translator\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-15T13:34:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-02-26T10:00:00+00:00\" \/>\n<meta name=\"author\" content=\"glavadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"glavadmin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/functiontranslator.com\/cs\/na\/\",\"url\":\"https:\/\/functiontranslator.com\/cs\/na\/\",\"name\":\"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule\",\"isPartOf\":{\"@id\":\"https:\/\/functiontranslator.com\/no\/#website\"},\"datePublished\":\"2025-07-15T13:34:45+00:00\",\"dateModified\":\"2021-02-26T10:00:00+00:00\",\"author\":{\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389\"},\"description\":\"Opis funkcije NA u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.\",\"breadcrumb\":{\"@id\":\"https:\/\/functiontranslator.com\/cs\/na\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/functiontranslator.com\/cs\/na\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/functiontranslator.com\/cs\/na\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Funkce aplikace Excel\",\"item\":\"https:\/\/functiontranslator.com\/cs\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Informa\u010dn\u00ed\",\"item\":\"https:\/\/functiontranslator.com\/cs\/informacni\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"NA\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#website\",\"url\":\"https:\/\/functiontranslator.com\/no\/\",\"name\":\"Function Translator\",\"description\":\"Excel function translator\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/functiontranslator.com\/no\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389\",\"name\":\"glavadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g\",\"caption\":\"glavadmin\"},\"sameAs\":[\"https:\/\/functiontranslator.com\"],\"url\":\"https:\/\/functiontranslator.com\/cs\/author\/glavadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule","description":"Opis funkcije NA u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/functiontranslator.com\/cs\/na\/","og_locale":"cs_CZ","og_type":"article","og_title":"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule","og_description":"Opis funkcije NA u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.","og_url":"https:\/\/functiontranslator.com\/cs\/na\/","og_site_name":"Function Translator","article_published_time":"2025-07-15T13:34:45+00:00","article_modified_time":"2021-02-26T10:00:00+00:00","author":"glavadmin","twitter_card":"summary_large_image","twitter_title":"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule","twitter_misc":{"Napsal(a)":"glavadmin","Odhadovan\u00e1 doba \u010dten\u00ed":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/functiontranslator.com\/cs\/na\/","url":"https:\/\/functiontranslator.com\/cs\/na\/","name":"Funkce NA v Excelu: jak funguje, primjeri kori\u0161tenja formule","isPartOf":{"@id":"https:\/\/functiontranslator.com\/no\/#website"},"datePublished":"2025-07-15T13:34:45+00:00","dateModified":"2021-02-26T10:00:00+00:00","author":{"@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389"},"description":"Opis funkcije NA u Excelu i Google tablicama. Sintaksa, parametri funkcije te prakti\u010dni primjeri.","breadcrumb":{"@id":"https:\/\/functiontranslator.com\/cs\/na\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/functiontranslator.com\/cs\/na\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/functiontranslator.com\/cs\/na\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Funkce aplikace Excel","item":"https:\/\/functiontranslator.com\/cs\/"},{"@type":"ListItem","position":2,"name":"Informa\u010dn\u00ed","item":"https:\/\/functiontranslator.com\/cs\/informacni\/"},{"@type":"ListItem","position":3,"name":"NA"}]},{"@type":"WebSite","@id":"https:\/\/functiontranslator.com\/no\/#website","url":"https:\/\/functiontranslator.com\/no\/","name":"Function Translator","description":"Excel function translator","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/functiontranslator.com\/no\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"},{"@type":"Person","@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/87663eece497ca58643166ecb09f1389","name":"glavadmin","image":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/functiontranslator.com\/no\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/03ccd9347c5339db75deede5a8c5b2bf1d40e0bce26a5251fcaac6331d381db8?s=96&d=mm&r=g","caption":"glavadmin"},"sameAs":["https:\/\/functiontranslator.com"],"url":"https:\/\/functiontranslator.com\/cs\/author\/glavadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts\/5710","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/comments?post=5710"}],"version-history":[{"count":2,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts\/5710\/revisions"}],"predecessor-version":[{"id":30848,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/posts\/5710\/revisions\/30848"}],"wp:attachment":[{"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/media?parent=5710"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/categories?post=5710"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/functiontranslator.com\/cs\/wp-json\/wp\/v2\/tags?post=5710"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}