{"id":5653,"date":"2025-07-15T13:34:44","date_gmt":"2025-07-15T13:34:44","guid":{"rendered":"https:\/\/functiontranslator.com\/je-prazdne\/"},"modified":"2021-02-26T09:58:04","modified_gmt":"2021-02-26T09:58:04","slug":"isblank","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/isblank\/","title":{"rendered":"JE.PR\u00c1ZDN\u00c9"},"content":{"rendered":"

\u00davod do funkc\u00ed pro testov\u00e1n\u00ed pr\u00e1zdn\u00fdch bun\u011bk<\/h2>\n

Funkce ISBLANK (v \u010de\u0161tin\u011b JE.PR\u00c1ZDN\u00c9) je u\u017eite\u010dn\u00fdm n\u00e1strojem v Microsoft Excel i Google Sheets, kter\u00fd umo\u017e\u0148uje zjistit, zda je bu\u0148ka pr\u00e1zdn\u00e1. Tento n\u00e1vod v\u00e1m podrobn\u011b p\u0159edstav\u00ed, jak tuto funkci pou\u017e\u00edvat, a poskytne praktick\u00e9 p\u0159\u00edklady jej\u00edho vyu\u017eit\u00ed.<\/p>\n

Syntaxe a popis<\/h2>\n

Syntaxe funkce JE.PR\u00c1ZDN\u00c9 je velmi jednoduch\u00e1 a skl\u00e1d\u00e1 se z jedin\u00e9ho argumentu:<\/p>\n

=JE.PR\u00c1ZDN\u00c9(bu\u0148ka)<\/code><\/pre>\n
Argument bu\u0148ka<\/code> predstavuje odkaz na bu\u0148ku, kterou chceme testovat. Funkce vr\u00e1t\u00ed hodnotu TRUE<\/code> (pravda), pokud je testovan\u00e1 bu\u0148ka pr\u00e1zdn\u00e1, a FALSE<\/code> (nepravda), pokud bu\u0148ka obsahuje jak\u00fdkoliv obsah, v\u010detn\u011b mezer, formul\u00ed \u010di nul.<\/p>\n
P\u0159\u00edklady pou\u017eit\u00ed<\/h2>\n
P\u0159edstavte si, \u017ee ve sloupci B m\u00e1te tabulku s \u00fadaji a pot\u0159ebujete testovat, kter\u00e9 bu\u0148ky jsou pr\u00e1zdn\u00e9. P\u0159\u00edklad m\u016f\u017ee vypadat n\u00e1sledovn\u011b:<\/p>\n\n\n\n\n\n
A<\/th>\nB<\/th>\n<\/tr>\n
Klient 1<\/td>\n100<\/td>\n<\/tr>\n
Klient 2<\/td>\n<\/td>\n<\/tr>\n
Klient 3<\/td>\n300<\/td>\n<\/tr>\n<\/table>\n
Pro testov\u00e1n\u00ed bu\u0148ky B2 pou\u017eijete formuli:<\/p>\n
=JE.PR\u00c1ZDN\u00c9(B2)<\/code><\/pre>\n
Tato formule vr\u00e1t\u00ed FALSE<\/code>, proto\u017ee v bu\u0148ce B2 je \u010d\u00edslo 100.<\/p>\n
Pro bu\u0148ku B3 pou\u017eijete:<\/p>\n
=JE.PR\u00c1ZDN\u00c9(B3)<\/code><\/pre>\n
V tomto p\u0159\u00edpad\u011b funkce vr\u00e1t\u00ed TRUE<\/code>, nebo\u0165 bu\u0148ka B3 je pr\u00e1zdn\u00e1.<\/p>\n
Praktick\u00e9 \u00falohy<\/h2>\n
Nyn\u00ed si uk\u00e1\u017eeme, jak lze funkci JE.PR\u00c1ZDN\u00c9 efektivn\u011b vyu\u017e\u00edt.<\/p>\n
1. \u00daloha – Filtrov\u00e1n\u00ed pr\u00e1zdn\u00fdch bun\u011bk<\/h2>\n
P\u0159edstavte si tabulku s mnoha daty a pot\u0159ebu identifikovat pr\u00e1zdn\u00e9 bu\u0148ky ve sloupci B. M\u016f\u017eete pou\u017e\u00edt n\u00e1sleduj\u00edc\u00ed formuli:<\/p>\n
=IFS(JE.PR\u00c1ZDN\u00c9(B1), \"Pr\u00e1zdn\u00e9\", \"Obsazen\u00e9\")<\/code><\/pre>\n
Formuli zkop\u00edrujete do v\u0161ech bu\u0148ek ve sloupci C, co\u017e v\u00e1m umo\u017en\u00ed jednodu\u0161e vizu\u00e1ln\u011b rozli\u0161it, kter\u00e9 bu\u0148ky ve sloupci B jsou pr\u00e1zdn\u00e9.<\/p>\n
2. \u00daloha – V\u00fdpo\u010det po\u010dtu pr\u00e1zdn\u00fdch bun\u011bk<\/h2>\n
Chcete-li zjistit, kolik pr\u00e1zdn\u00fdch bun\u011bk se nach\u00e1z\u00ed v ur\u010dit\u00e9m rozsahu, m\u016f\u017eete kombinovat JE.PR\u00c1ZDN\u00c9 s funkc\u00ed PO\u010cET.HODNOT:<\/p>\n
=PO\u010cET.HODNOT(KDY\u017d(JE.PR\u00c1ZDN\u00c9(B1:B100); 1; \"\"))<\/code><\/pre>\n
Formule KYDY\u017d projde rozsah B1 a\u017e B100 a u\u017e\u00edv\u00e1 hodnotu 1, pokud je bu\u0148ka pr\u00e1zdn\u00e1. Funkce PO\u010cET.HODNOT pot\u00e9 spo\u010d\u00edt\u00e1, kolik takov\u00fdch p\u0159\u00edpad\u016f se vyskytlo. Tento p\u0159\u00edstup v\u00e1m umo\u017en\u00ed efektivn\u011b vyu\u017e\u00edvat funkci JE.PR\u00c1ZDN\u00c9 pro r\u016fzn\u00e9 \u00fa\u010dely v tabulkov\u00fdch aplikac\u00edch.<\/p>\n","protected":false},"excerpt":{"rendered":"
Vr\u00e1t\u00ed hodnotu PRAVDA, pokud argument hodnota odkazuje na\u00a0pr\u00e1zdnou bu\u0148ku<\/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-5653","post","type-post","status-publish","format-standard","hentry","category-informacni"],"acf":[],"yoast_head":"\nFunkce ISBLANK (JE.PR\u00c1ZDN\u00c9) v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije ISBLANK (JE.PR\u00c1ZDN\u00c9) u Excelu i Google tablicama. 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