{"id":1961,"date":"2023-07-24T07:09:52","date_gmt":"2023-07-24T07:09:52","guid":{"rendered":"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/"},"modified":"2023-07-24T07:09:52","modified_gmt":"2023-07-24T07:09:52","slug":"mnozenie-elementarne-w-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/","title":{"rendered":"Jak wykona\u0107 mno\u017cenie przez elementy w r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">R doskonale nadaje si\u0119 do wykonywania mno\u017cenia element po elemencie mi\u0119dzy dwoma obiektami.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak wykona\u0107 mno\u017cenie elementowe pomi\u0119dzy r\u00f3\u017cnymi obiektami w R.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Mno\u017cenie dw\u00f3ch wektor\u00f3w<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wykona\u0107 mno\u017cenie elementarne za pomoc\u0105 dw\u00f3ch wektor\u00f3w:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#createvectors\n<\/span>a &lt;- c(1, 3, 4, 5)\nb &lt;- c(2, 2, 3, 3)\n\n<span style=\"color: #008080;\">#perform element-wise multiplication\n<\/span>a*b\n\n[1] 2 6 12 15<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Oto jak obliczono wyniki:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">1*2= <strong>2<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">3*2 = <strong>6<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">4*3 = <strong>12<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">5*3 = <strong>15<\/strong><\/span><\/li>\n<\/ul>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Pomn\u00f3\u017c ramk\u0119 danych i wektor<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wykona\u0107 mno\u017cenie elementowe za pomoc\u0105 ramki danych i wektora:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (a=c(1, 3, 4, 5),\n                 b=c(2, 2, 3, 3))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  ab\n1 1 2\n2 3 2\n3 4 3\n4 5 3\n\n<span style=\"color: #008080;\">#definevector\n<\/span>x &lt;- c(2, 5, 5, 8)\n\n<span style=\"color: #008080;\">#multiply data frame by vector<\/span>\ndf*x\n\n   ab\n1 2 4\n2 15 10\n3 20 15\n4 40 24\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 3: Pomn\u00f3\u017c dwie ramki danych<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wykona\u0107 mno\u017cenie element po elemencie mi\u0119dzy dwiema ramkami danych:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define data frames\n<\/span>df1 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (a=c(1, 3, 4, 5),\n                  b=c(2, 2, 3, 3))\ndf2 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (c=c(6, 2, 2, 2),\n                  d=c(1, 7, 4, 9))\n\n<span style=\"color: #008080;\">#multiply two data frames\n<\/span>df1*df2\n\n   ab\n1 6 2\n2 6 14\n3 8 12\n4 10 27\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy pami\u0119ta\u0107, \u017ce powsta\u0142y blok danych ma ten sam rozmiar, co dwa bloki danych, kt\u00f3re mno\u017cymy.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Pami\u0119taj r\u00f3wnie\u017c, \u017ce je\u015bli spr\u00f3bujemy pomno\u017cy\u0107 dwie ramki danych o r\u00f3\u017cnych rozmiarach, otrzymamy b\u0142\u0105d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define data frames of unequal sizes\n<\/span>df1 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (a=c(1, 3, 4, 5),\n                  b=c(2, 2, 3, 3))\n\ndf2 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (c=c(6, 2, 2),\n                  d=c(1, 7, 4))\n\n<span style=\"color: #008080;\">#attempt to multiply two data frames\n<\/span>df1*df2\n\nError in Ops.data.frame(df1, df2): \n  '*' only defined for equally-sized data frames<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> Jak wykona\u0107 mno\u017cenie macierzy w R<br \/> <a href=\"https:\/\/statorials.org\/pl\/przekonwertowac-macierz-na-wektor-r\/\" target=\"_blank\" rel=\"noopener\">Jak przekonwertowa\u0107 macierz na wektor w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/przekonwertuj-kolumne-ramki-danych-na-wektor-r\/\" target=\"_blank\" rel=\"noopener\">Jak przekonwertowa\u0107 kolumn\u0119 ramki danych na wektor w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R doskonale nadaje si\u0119 do wykonywania mno\u017cenia element po elemencie mi\u0119dzy dwoma obiektami. Poni\u017csze przyk\u0142ady pokazuj\u0105, jak wykona\u0107 mno\u017cenie elementowe pomi\u0119dzy r\u00f3\u017cnymi obiektami w R. Przyk\u0142ad 1: Mno\u017cenie dw\u00f3ch wektor\u00f3w Poni\u017cszy kod pokazuje, jak wykona\u0107 mno\u017cenie elementarne za pomoc\u0105 dw\u00f3ch wektor\u00f3w: #createvectors a &lt;- c(1, 3, 4, 5) b &lt;- c(2, 2, 3, 3) #perform [&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-1961","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 wykona\u0107 mno\u017cenie element po elemencie w R - Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak wykona\u0107 mno\u017cenie elementowe 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\/mnozenie-elementarne-w-r\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak wykona\u0107 mno\u017cenie element po elemencie w R - Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak wykona\u0107 mno\u017cenie elementowe w j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T07:09:52+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\/mnozenie-elementarne-w-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/\",\"name\":\"Jak wykona\u0107 mno\u017cenie element po elemencie w R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-24T07:09:52+00:00\",\"dateModified\":\"2023-07-24T07:09:52+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak wykona\u0107 mno\u017cenie elementowe w j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/mnozenie-elementarne-w-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wykona\u0107 mno\u017cenie przez elementy w r\"}]},{\"@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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