{"id":5789,"date":"2025-07-15T13:34:44","date_gmt":"2025-07-15T13:34:44","guid":{"rendered":"https:\/\/functiontranslator.com\/rkq\/"},"modified":"2021-02-26T10:02:46","modified_gmt":"2021-02-26T10:02:46","slug":"rsq","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/cs\/rsq\/","title":{"rendered":"RKQ"},"content":{"rendered":"

Funkce RSQ (v \u010de\u0161tin\u011b RKQ) je cenn\u00fdm n\u00e1strojem pro anal\u00fdzu vztah\u016f mezi dv\u011bma soubory dat v oblastech jako jsou finance, marketing, ekonomie nebo v\u011bda. Tato funkce vypo\u010d\u00edt\u00e1v\u00e1 kvadr\u00e1t Pearsonova korela\u010dn\u00edho koeficientu, statistick\u00fd ukazatel, kter\u00fd popisuje, do jak\u00e9 m\u00edry jsou data z obou soubor\u016f kompatibiln\u00ed s line\u00e1rn\u00edm modelem.<\/p>\n

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

Syntaxe funkce RSQ v Excelu a Google Sheets je n\u00e1sleduj\u00edc\u00ed:<\/p>\n

 RSQ(z\u00e1visl\u00e9_y; nez\u00e1visl\u00e9_x)<\/code><\/pre>\n
Parametr z\u00e1visl\u00e9_y<\/code> p\u0159edstavuje z\u00e1vislou prom\u011bnnou, kter\u00e1 je zad\u00e1na jako rozsah bun\u011bk, zat\u00edmco nez\u00e1visl\u00e9_x<\/code> reprezentuje nez\u00e1vislou prom\u011bnnou, rovn\u011b\u017e zad\u00e1nu jako rozsah bun\u011bk.<\/p>\n
P\u0159\u00edklad pou\u017eit\u00ed funkce:<\/p>\n
 =RSQ(A2:A10, B2:B10)<\/code><\/pre>\n
Tento p\u0159\u00edklad vypo\u010d\u00edt\u00e1 hodnotu R-kvadr\u00e1tu pro hodnoty v rozsaz\u00edch A2:A10 a B2:B10.<\/p>\n
P\u0159\u00edklady praktick\u00e9ho vyu\u017eit\u00ed<\/h2>\n
Funkce RSQ lze vyu\u017e\u00edt v r\u016fzn\u00fdch odv\u011btv\u00edch pro anal\u00fdzu a predikci s\u00edly vztahu mezi dv\u011bma datov\u00fdmi soubory. N\u00ed\u017ee jsou uvedeny dva p\u0159\u00edklady:<\/p>\n
Vyhodnocen\u00ed efektivity reklamn\u00edch v\u00fddaj\u016f<\/h2>\n
Marketingov\u00ed analytici \u010dasto zkoumaj\u00ed vztah mezi v\u00fddaji na reklamu (nez\u00e1visl\u00e9_x) a n\u00e1r\u016fstem prodeje (z\u00e1visl\u00e9_y). P\u0159edstavme si data s n\u00e1sleduj\u00edc\u00edmi hodnotami:<\/p>\n\n\n\n\n\n\n
M\u011bs\u00edc<\/th>\nProdeje (tis. K\u010d)<\/th>\nReklamn\u00ed v\u00fddaje (tis. K\u010d)<\/th>\n<\/tr>\n
Leden<\/td>\n120<\/td>\n15<\/td>\n<\/tr>\n
\u00danor<\/td>\n150<\/td>\n22<\/td>\n<\/tr>\n
B\u0159ezen<\/td>\n180<\/td>\n30<\/td>\n<\/tr>\n
…<\/td>\n…<\/td>\n…<\/td>\n<\/tr>\n<\/table>\n
Data vlo\u017e\u00edme do Excelu nebo Google Sheets a aplikujeme funkci RSQ:<\/p>\n
 =RSQ(B2:B13, C2:C13)<\/code><\/pre>\n
V\u00fdsledn\u00e1 hodnota R-kvadr\u00e1tu n\u00e1m umo\u017en\u00ed posoudit, do jak\u00e9 m\u00edry reklamn\u00ed v\u00fddaje ovliv\u0148uj\u00ed prodeje. Vy\u0161\u0161\u00ed R-kvadr\u00e1t bl\u00edzk\u00fd hodnot\u011b 1 nazna\u010duje siln\u011bj\u0161\u00ed korelaci.<\/p>\n
Predikce ceny nemovitost\u00ed<\/h2>\n
P\u0159edstavme si, \u017ee realitn\u00ed analytik chce vyhodnotit vztah mezi velikost\u00ed nemovitosti (nez\u00e1visl\u00e9_x) a jej\u00ed cenou (z\u00e1visl\u00e9_y). M\u016f\u017ee m\u00edt k dispozici n\u00e1sleduj\u00edc\u00ed data:<\/p>\n\n\n\n\n\n\n
Velikost (m\u00b2)<\/th>\nCena (mil. K\u010d)<\/th>\n<\/tr>\n
100<\/td>\n2.5<\/td>\n<\/tr>\n
150<\/td>\n3.5<\/td>\n<\/tr>\n
200<\/td>\n4.5<\/td>\n<\/tr>\n
…<\/td>\n…<\/td>\n<\/tr>\n<\/table>\n
Pro anal\u00fdzu pou\u017eije funkci RSQ:<\/p>\n
 =RSQ(B2:B15, C2:C15)<\/code><\/pre>\n
Hodnota R-kvadr\u00e1tu uk\u00e1\u017ee, jak p\u0159esn\u011b m\u016f\u017ee velikost nemovitosti p\u0159edpov\u011bd\u011bt jej\u00ed cenu. Vysok\u00fd R-kvadr\u00e1t indikuje, \u017ee velikost je spolehliv\u00fdm prediktorem ceny.<\/p>\n","protected":false},"excerpt":{"rendered":"
Vr\u00e1t\u00ed druhou mocninu Pearsonova v\u00fdsledn\u00e9ho momentov\u00e9ho korela\u010dn\u00edho koeficientu<\/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-5789","post","type-post","status-publish","format-standard","hentry","category-statisticke"],"acf":[],"yoast_head":"\nFunkce RSQ (RKQ) v Excelu: jak funguje, primjeri kori\u0161tenja formule<\/title>\n<meta name=\"description\" content=\"Opis funkcije RSQ (RKQ) u Excelu i Google tablicama. 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