{"id":1911,"date":"2023-07-24T11:50:10","date_gmt":"2023-07-24T11:50:10","guid":{"rendered":"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/"},"modified":"2023-07-24T11:50:10","modified_gmt":"2023-07-24T11:50:10","slug":"x-musi-byc-liczba","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/","title":{"rendered":"Jak naprawi\u0107 w r: \u201ex\u201d musi by\u0107 liczb\u0105"},"content":{"rendered":"

<\/p>\n

\n

B\u0142\u0105d, kt\u00f3ry mo\u017cesz napotka\u0107 w R to:<\/span><\/p>\n

 Error in hist.default(data): 'x' must be numeric\n<\/strong><\/pre>\n
 Ten b\u0142\u0105d wyst\u0119puje podczas pr\u00f3by utworzenia histogramu dla zmiennej, kt\u00f3ra nie jest liczbowa.<\/span><\/p>\n
 W tym samouczku dok\u0142adnie wyja\u015bniono, jak naprawi\u0107 ten b\u0142\u0105d.<\/span><\/p>\n
 Jak odtworzy\u0107 b\u0142\u0105d<\/strong><\/span><\/h3>\n
 Za\u0142\u00f3\u017cmy, \u017ce pr\u00f3bujemy utworzy\u0107 histogram dla nast\u0119puj\u0105cego wektora danych:<\/span><\/p>\n
 #definevector\n<\/span>data <- c('1.2', '1.4', '1.7', '1.9', '2.2', '2.5', '3', '3.4', '3.7', '4.1')\n\n#attempt to create histogram to visualize distribution of values in vector\n<\/span>hist(data)\n\nError in hist.default(data): 'x' must be numeric\n<\/strong><\/pre>\n
 Otrzymujemy b\u0142\u0105d, poniewa\u017c dane<\/strong> nie s\u0105 obecnie wektorem numerycznym. Mo\u017cemy to potwierdzi\u0107 sprawdzaj\u0105c klas\u0119:<\/span><\/p>\n
 #check class\n<\/span>class(data)\n\n[1] \u201ccharacter\u201d\n<\/strong><\/pre>\n
 Obecnie dane<\/strong> s\u0105 wektorem znakowym.<\/span><\/p>\n
 Jak naprawi\u0107 b\u0142\u0105d<\/strong><\/span><\/h3>\n
 Naj\u0142atwiejszym sposobem naprawienia tego b\u0142\u0119du jest po prostu u\u017cycie funkcji as.numeric()<\/strong> w celu konwersji naszego wektora na numeryczny:<\/span> <\/p>\n
 #convert vector from character to numeric\n<\/span>data_numeric <- as. numeric<\/span> (data)\n\n#create histogram\nhist(data_numeric)<\/span><\/span>\n<\/strong><\/pre>\n
\"\"<\/p>\n
 Zauwa\u017c, \u017ce nie otrzymali\u015bmy b\u0142\u0119du i mo\u017cemy utworzy\u0107 histogram, poniewa\u017c nasz wektor jest teraz numeryczny.<\/span><\/p>\n
 Mo\u017cemy to sprawdzi\u0107 sprawdzaj\u0105c klas\u0119:<\/span><\/p>\n
 #check class\n<\/span>class(data_numeric)\n\n[1] \"digital\"\n<\/strong><\/pre>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Poni\u017csze samouczki wyja\u015bniaj\u0105, jak naprawi\u0107 inne typowe b\u0142\u0119dy w R:<\/span><\/p>\n
 Jak naprawi\u0107: NA wprowadzone przez przymus<\/a>
 Jak naprawi\u0107: Nieprawid\u0142owa liczba indeks\u00f3w w macierzy<\/a>
 Rozwi\u0105zanie: liczba element\u00f3w do wymiany nie jest wielokrotno\u015bci\u0105 d\u0142ugo\u015bci wymiany<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
B\u0142\u0105d, kt\u00f3ry mo\u017cesz napotka\u0107 w R to: Error in hist.default(data): 'x’ must be numeric Ten b\u0142\u0105d wyst\u0119puje podczas pr\u00f3by utworzenia histogramu dla zmiennej, kt\u00f3ra nie jest liczbowa. W tym samouczku dok\u0142adnie wyja\u015bniono, jak naprawi\u0107 ten b\u0142\u0105d. Jak odtworzy\u0107 b\u0142\u0105d Za\u0142\u00f3\u017cmy, \u017ce pr\u00f3bujemy utworzy\u0107 histogram dla nast\u0119puj\u0105cego wektora danych: #definevector data <- c(’1.2′, '1.4′, '1.7′, '1.9′, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1911","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak naprawi\u0107 w R: \u201ex\u201d musi by\u0107 liczb\u0105 \u2013 Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak naprawi\u0107 nast\u0119puj\u0105cy b\u0142\u0105d w j\u0119zyku R: \u201ex\u201d musi by\u0107 liczb\u0105.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak naprawi\u0107 w R: \u201ex\u201d musi by\u0107 liczb\u0105 \u2013 Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak naprawi\u0107 nast\u0119puj\u0105cy b\u0142\u0105d w j\u0119zyku R: \u201ex\u201d musi by\u0107 liczb\u0105.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T11:50:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/histr1.png\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuta\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/\",\"url\":\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/\",\"name\":\"Jak naprawi\u0107 w R: \u201ex\u201d musi by\u0107 liczb\u0105 \u2013 Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-24T11:50:10+00:00\",\"dateModified\":\"2023-07-24T11:50:10+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak naprawi\u0107 nast\u0119puj\u0105cy b\u0142\u0105d w j\u0119zyku R: \u201ex\u201d musi by\u0107 liczb\u0105.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/x-musi-byc-liczba\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak naprawi\u0107 w r: \u201ex\u201d musi by\u0107 liczb\u0105\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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