{"id":469,"date":"2023-07-29T19:28:09","date_gmt":"2023-07-29T19:28:09","guid":{"rendered":"https:\/\/statorials.org\/pl\/dodaj-kolumne-indeksu-do-ramki-danych-r\/"},"modified":"2023-07-29T19:28:09","modified_gmt":"2023-07-29T19:28:09","slug":"dodaj-kolumne-indeksu-do-ramki-danych-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/dodaj-kolumne-indeksu-do-ramki-danych-r\/","title":{"rendered":"Jak doda\u0107 kolumn\u0119 indeksu (identyfikator numeryczny) do ramki danych w r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce masz nast\u0119puj\u0105c\u0105 ramk\u0119 danych:<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong>data &lt;- data.frame(team = c('Spurs', 'Lakers', 'Pistons', 'Mavs'),<\/strong>\n<strong>avg_points = c(102, 104, 96, 97))<\/strong>\n<strong>data\n\n# team avg_points\n#1 Spurs 102\n#2 Lakers 104\n#3 Pistons 96\n#4 Mavs 97<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Aby doda\u0107 kolumn\u0119 indeksu i nada\u0107 ka\u017cdemu wierszowi w tej ramce danych unikalny identyfikator numeryczny, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cego kodu:<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#add index column to data frame<\/span>\ndata$index &lt;- 1:nrow(data)\ndata\n\n# team avg_points index\n#1 Spurs 102 1\n#2 Lakers 104 2\n#3 Pistons 96 3\n#4 Mavs 97 4\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Innym sposobem na dodanie unikalnego identyfikatora do ka\u017cdego wiersza w ramce danych jest u\u017cycie funkcji <strong>tibble::rowid_to_column<\/strong> z pakietu <strong>spiceverse<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#load tidyverse package<\/span>\nlibrary(tidyverse)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>data &lt;- data.frame(team = c('Spurs', 'Lakers', 'Pistons', 'Mavs'),\n                   avg_points = c(102, 104, 96, 97))\n\n<span style=\"color: #008080;\">#add index column to data frame\n<\/span>data &lt;- tibble::rowid_to_column(data, \"index\")\ndata\n\n# index team avg_points\n#1 1 Spurs 102\n#2 2 Lakers 104\n#3 3 Pistons 96\n#4 4 Mavs 97\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy zauwa\u017cy\u0107, \u017ce obie techniki daj\u0105 ten sam wynik: now\u0105 kolumn\u0119, kt\u00f3ra nadaje ka\u017cdemu wierszowi w ramce danych unikalny identyfikator.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Za\u0142\u00f3\u017cmy, \u017ce masz nast\u0119puj\u0105c\u0105 ramk\u0119 danych: data &lt;- data.frame(team = c(&#8217;Spurs&#8217;, 'Lakers&#8217;, 'Pistons&#8217;, 'Mavs&#8217;), avg_points = c(102, 104, 96, 97)) data # team avg_points #1 Spurs 102 #2 Lakers 104 #3 Pistons 96 #4 Mavs 97 Aby doda\u0107 kolumn\u0119 indeksu i nada\u0107 ka\u017cdemu wierszowi w tej ramce danych unikalny identyfikator numeryczny, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cego kodu: [&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-469","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - 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