{"id":3479,"date":"2023-07-17T06:49:35","date_gmt":"2023-07-17T06:49:35","guid":{"rendered":"https:\/\/statorials.org\/nl\/r-vervang-inf-door-na\/"},"modified":"2023-07-17T06:49:35","modified_gmt":"2023-07-17T06:49:35","slug":"r-vervang-inf-door-na","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/r-vervang-inf-door-na\/","title":{"rendered":"Hoe inf-waarden te vervangen door na in r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">U kunt de volgende methoden gebruiken om Inf-waarden te vervangen door NA-waarden in R:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Methode 1: Vervang Inf door NA in Vector<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>x[is. <span style=\"color: #3366ff;\">infinite<\/span> (x)] &lt;- NA\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Methode 2: Vervang Inf door NA in alle kolommen van het dataframe<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\"><span style=\"color: #000000;\">df[sapply(df, is. <span style=\"color: #3366ff;\">infinite<\/span> )] &lt;- NA\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Methode 3: Vervang Inf door NA in specifieke kolommen van het dataframe<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\"><span style=\"color: #000000;\">df[c(' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col2<\/span> ')][sapply(df[c(' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col2<\/span> ')], is. <span style=\"color: #3366ff;\">infinite<\/span> )] &lt;- NA\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">In deze tutorial wordt uitgelegd hoe u elke methode in de praktijk kunt gebruiken met het volgende dataframe:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (team=c('A', 'A', 'A', 'A', 'B', 'B', 'B', 'B'),\n                 position=c('G', 'G', 'F', 'F', 'G', 'G', 'F', 'F'),\n                 points=c(10, 10, 8, 14, 15, 15, 17, 17))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  team position points\n1 AG 10\n2 AG 10\n3AF 8\n4 AF 14\n5 BG 15\n6 BG 15\n7 BF 17\n8 BF 17\n<\/strong><\/span><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Voorbeeld 1: Vervang Inf door NA in de vector<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">De volgende code laat zien hoe je alle Inf-waarden vervangt door NA-waarden in een vector:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create vector with some Inf values\n<\/span>x &lt;- c(4, 12, Lower, 8, Lower, 9, 12, 3, 22, Lower)\n\n<span style=\"color: #008080;\">#replace Inf values with NA\n<\/span>x[is. <span style=\"color: #3366ff;\">infinite<\/span> (x)] &lt;- NA\n\n<span style=\"color: #008080;\">#view updated vector\n<\/span>x\n\n [1] 4 12 NA 8 NA 9 12 3 22 NA\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Merk op dat alle Inf-waarden van de originele vector zijn vervangen door NA-waarden.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Voorbeeld 2: Vervang Inf door NA in alle kolommen van het dataframe<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">De volgende code laat zien hoe u Inf-waarden vervangt door NA-waarden in elke kolom van een dataframe:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x=c(4, 5, 5, 4, Inf, 8, Inf),\n                 y=c(10, Lower, Lower, 3, 5, 5, 8),\n                 z=c(Inf, 5, 5, 6, 3, 12, 14))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n    X Y Z\n1 4 10 Lower\n2 5 Lower 5\n3 5 Lower 5\n4 4 3 6\n5 Lower 5 3\n6 8 5 12\n7 Lower 8 14\n\n<span style=\"color: #008080;\">#replace Inf values with NA values in all columns\n<\/span>df[sapply(df, is. <span style=\"color: #3366ff;\">infinite<\/span> )] &lt;- NA\n\n<span style=\"color: #008080;\">#view updated data frame\n<\/span>df\n\n   X Y Z\n1 4 10 NA\n2 5 NA 5\n3 5 NA 5\n4 4 3 6\n5 NA 5 3\n6 8 5 12\n7 NA 8 14<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Merk op dat de Inf-waarden in elke kolom van het dataframe zijn vervangen door NA-waarden.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Voorbeeld 3: Vervang Inf door NA in specifieke kolommen van het dataframe<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">De volgende code laat zien hoe u Inf-waarden vervangt door NA-waarden in specifieke kolommen van een dataframe:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (x=c(4, 5, 5, 4, Inf, 8, Inf),\n                 y=c(10, Lower, Lower, 3, 5, 5, 8),\n                 z=c(Inf, 5, 5, 6, 3, 12, 14))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n    X Y Z\n1 4 10 Lower\n2 5 Lower 5\n3 5 Lower 5\n4 4 3 6\n5 Lower 5 3\n6 8 5 12\n7 Lower 8 14\n\n<span style=\"color: #008080;\">#replace Inf values with NA values in columns 'x' and 'z' only\n<\/span>df[c(' <span style=\"color: #ff0000;\">x<\/span> ', ' <span style=\"color: #ff0000;\">z<\/span> ')][sapply(df[c(' <span style=\"color: #ff0000;\">x<\/span> ', ' <span style=\"color: #ff0000;\">z<\/span> ')], is. <span style=\"color: #3366ff;\">infinite<\/span> )] &lt;- NA\n\n<span style=\"color: #008080;\">#view updated data frame\n<\/span>df\n\n   X Y Z\n1 4 10 NA\n2 5 Lower 5\n3 5 Lower 5\n4 4 3 6\n5 NA 5 3\n6 8 5 12\n7 NA 8 14<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Merk op dat de Inf-waarden in de kolommen \u201cx\u201d en \u201cy\u201d zijn vervangen door NA-waarden.<\/span><\/p>\n<p> <span style=\"color: #000000;\">De Inf-waarden in kolom \u201cy\u201d bleven echter intact.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Aanvullende bronnen<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">In de volgende tutorials wordt uitgelegd hoe u andere veelvoorkomende taken in R kunt uitvoeren:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/nl\/is-n.v.t\/\" target=\"_blank\" rel=\"noopener\">Hoe gebruik je is.na in R?<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/na-weglaten-in-r\/\" target=\"_blank\" rel=\"noopener\">Hoe na.omit te gebruiken in R<\/a><br \/> <a href=\"https:\/\/statorials.org\/nl\/r-vervang-leeg-door-na\/\" target=\"_blank\" rel=\"noopener\">Hoe blanco&#8217;s te vervangen door NA in R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>U kunt de volgende methoden gebruiken om Inf-waarden te vervangen door NA-waarden in R: Methode 1: Vervang Inf door NA in Vector x[is. infinite (x)] &lt;- NA Methode 2: Vervang Inf door NA in alle kolommen van het dataframe df[sapply(df, is. infinite )] &lt;- NA Methode 3: Vervang Inf door NA in specifieke kolommen van [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-3479","post","type-post","status-publish","format-standard","hentry","category-gids"],"yoast_head":"<!-- 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