{"id":1969,"date":"2023-07-24T06:24:51","date_gmt":"2023-07-24T06:24:51","guid":{"rendered":"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/"},"modified":"2023-07-24T06:24:51","modified_gmt":"2023-07-24T06:24:51","slug":"utworz-pusta-macierz-w-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/","title":{"rendered":"Jak utworzy\u0107 pust\u0105 macierz w r (z przyk\u0142adami)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby utworzy\u0107 pust\u0105 macierz o okre\u015blonym rozmiarze w R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create empty matrix with 10 rows and 3 columns<\/span>\nempty_matrix &lt;- matrix(, nrow= <span style=\"color: #008000;\">10<\/span> , ncol= <span style=\"color: #008000;\">3<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak u\u017cywa\u0107 tej sk\u0142adni w praktyce.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Utw\u00f3rz pust\u0105 macierz o okre\u015blonym rozmiarze<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak utworzy\u0107 pust\u0105 macierz o okre\u015blonym rozmiarze w R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create empty matrix with 10 rows and 3 columns\n<\/span>empty_matrix &lt;- matrix(, nrow= <span style=\"color: #008000;\">10<\/span> , ncol= <span style=\"color: #008000;\">3<\/span> )\n\n<span style=\"color: #008080;\">#view empty matrix\n<\/span>empty_matrix\n\n      [,1] [,2] [,3]\n [1,] NA NA NA\n [2,] NA NA NA\n [3,] NA NA NA\n [4,] NA NA NA\n [5,] NA NA NA\n [6,] NA NA NA\n [7,] NA NA NA\n [8,] NA NA NA\n [9,] NA NA NA\n[10,] NA NA NA\n\n<span style=\"color: #008080;\">#view class<\/span>\nclass(empty_matrix)\n\n[1] \"matrix\" \"array\" \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Rezultatem jest macierz z\u0142o\u017cona z 10 wierszy i 3 kolumn, w kt\u00f3rej ka\u017cdy element macierzy jest pusty.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Utw\u00f3rz macierz o nieznanym rozmiarze<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Je\u015bli nie wiesz z g\u00f3ry, jaki b\u0119dzie ostateczny rozmiar macierzy, mo\u017cesz u\u017cy\u0107 poni\u017cszego kodu, aby wygenerowa\u0107 dane dla kolumn macierzy i powi\u0105za\u0107 ka\u017cd\u0105 kolumn\u0119 razem za pomoc\u0105 funkcji <a href=\"https:\/\/statorials.org\/pl\/cbind-w-r\/\" target=\"_blank\" rel=\"noopener\">cbind()<\/a> :<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create empty list\n<\/span>my_list &lt;-list()\n\n<span style=\"color: #008080;\">#add data using for loop\n<\/span><span style=\"color: #008000;\">for<\/span> (i <span style=\"color: #008000;\">in<\/span> 1:4) {\n    my_list[[i]] &lt;- rnorm(10)\n}\n\n<span style=\"color: #008080;\">#column bind values into a matrix\n<\/span>my_matrix = do. <span style=\"color: #3366ff;\">call<\/span> (cbind, my_list)\n\n<span style=\"color: #008080;\">#view final matrix\n<\/span>my_matrix\n\n            [,1] [,2] [,3] [,4]\n [1,] 1.3064332 1.18175760 2.1603867 1.2378847\n [2,] 0.8618439 0.66663694 0.1113606 0.2062029\n [3,] -0.4689356 -0.03200797 -1.3872632 1.6531437\n [4,] -0.4664767 -0.79285400 0.3972758 0.1632975\n [5,] 0.5880580 1.05795303 -0.5655543 -0.3557376\n [6,] 0.5412100 -0.32070294 -0.3687303 -1.1778959\n [7,] 0.5073627 -0.24925226 1.0031305 0.6336998\n [8,] 0.8047177 0.10968558 0.3225197 1.6776955\n [9,] 1.5755134 1.40435730 1.8360239 0.5612274\n[10,] -0.6430913 0.01173386 0.3181037 -0.8414270\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Rezultatem jest macierz z\u0142o\u017cona z 10 wierszy i 4 kolumn.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak utworzy\u0107 inne puste obiekty w R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/utworz-pusta-ramke-danych-w-r\/\" target=\"_blank\" rel=\"noopener\">Jak utworzy\u0107 pust\u0105 ramk\u0119 danych w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/utworz-pusta-liste-w-r\/\" target=\"_blank\" rel=\"noopener\">Jak utworzy\u0107 pust\u0105 list\u0119 w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/utworz-pusty-wektor-w-r\/\" target=\"_blank\" rel=\"noopener\">Jak utworzy\u0107 pusty wektor w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby utworzy\u0107 pust\u0105 macierz o okre\u015blonym rozmiarze w R: #create empty matrix with 10 rows and 3 columns empty_matrix &lt;- matrix(, nrow= 10 , ncol= 3 ) Poni\u017csze przyk\u0142ady pokazuj\u0105, jak u\u017cywa\u0107 tej sk\u0142adni w praktyce. Przyk\u0142ad 1: Utw\u00f3rz pust\u0105 macierz o okre\u015blonym rozmiarze Poni\u017cszy kod pokazuje, jak utworzy\u0107 pust\u0105 macierz [&hellip;]<\/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-1969","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak utworzy\u0107 pust\u0105 macierz w R (z przyk\u0142adami) \u2013 Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak utworzy\u0107 pust\u0105 macierz w j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\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\/utworz-pusta-macierz-w-r\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak utworzy\u0107 pust\u0105 macierz w R (z przyk\u0142adami) \u2013 Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak utworzy\u0107 pust\u0105 macierz w j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T06:24:51+00:00\" \/>\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\/utworz-pusta-macierz-w-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/\",\"name\":\"Jak utworzy\u0107 pust\u0105 macierz w R (z przyk\u0142adami) \u2013 Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-24T06:24:51+00:00\",\"dateModified\":\"2023-07-24T06:24:51+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak utworzy\u0107 pust\u0105 macierz w j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/utworz-pusta-macierz-w-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak utworzy\u0107 pust\u0105 macierz w r (z przyk\u0142adami)\"}]},{\"@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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