{"id":15490,"date":"2022-10-11T18:54:03","date_gmt":"2022-10-11T13:24:03","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-r-is-there-a-function-to-clean-factor-levels-characters-columnwise-in-a-data-frame-closed\/"},"modified":"2022-10-11T18:54:03","modified_gmt":"2022-10-11T13:24:03","slug":"solved-r-is-there-a-function-to-clean-factor-levels-characters-columnwise-in-a-data-frame-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-r-is-there-a-function-to-clean-factor-levels-characters-columnwise-in-a-data-frame-closed\/","title":{"rendered":"[Solved] R: Is there a function to clean factor levels? characters columnwise in a data frame? [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-47887699\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"47887699\" data-parentid=\"47886409\" data-score=\"4\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>Just use the internal bits from <code>janitor::clean_names()<\/code>:<\/p>\n<pre><code># #' 'Clean' a character\/factor vector like `janitor::clean_names()` does for data frame columns\n# #'\n# #' Most of the internals are from `janitor::clean_names()`\n# #'\n# #' @param x a vector of strings or factors\n# #' @param refactor if `x` is a factor, return a ref-factored factor?\n# #'        Default: `FALSE` == return character vector.\nclean_vec &lt;- function (x, refactor=FALSE) {\n\n  require(magrittr, quietly=TRUE)\n\n  if (!(is.character(x) || is.factor(x))) return(x)\n\n  x_is_factor &lt;- is.factor(x)\n\n  old_names &lt;- as.character(x)\n\n  new_names &lt;- old_names %&gt;%\n    gsub(\"'\", \"\", .) %&gt;%\n    gsub(\"\\\"\", \"\", .) %&gt;%\n    gsub(\"%\", \"percent\", .) %&gt;%\n    gsub(\"^[ ]+\", \"\", .) %&gt;%\n    make.names(.) %&gt;%\n    gsub(\"[.]+\", \"_\", .) %&gt;%\n    gsub(\"[_]+\", \"_\", .) %&gt;%\n    tolower(.) %&gt;%\n    gsub(\"_$\", \"\", .)\n\n  dupe_count &lt;- sapply(1:length(new_names), function(i) {\n    sum(new_names[i] == new_names[1:i])\n  })\n\n  new_names[dupe_count &gt; 1] &lt;- paste(\n    new_names[dupe_count &gt; 1], dupe_count[dupe_count &gt; 1], sep = \"_\"\n  )\n\n  if (x_is_factor &amp;&amp; refactor) factor(new_names) else new_names\n\n}\n<\/code><\/pre>\n<p>Example:<\/p>\n<pre><code>vec &lt;- stringi::stri_rand_strings(10, 10, pattern = \"[A-Za-z0-9\\\\.\\\\-\\\\?_\\\\,\\\\*\\\\+]\")\n\nvec\n##  [1] \"TzMF-iCHX6\" \"v-b+2cpul5\" \"JPMwpP35K6\" \"5Z3RQf50Tb\" \"HaPzKB5jhH\"\n##  [6] \"3gz6P4?0uU\" \"ofXkhP4Q1O\" \"?,4NvCjw,3\" \"AlG9dWJ,Ze\" \"MrPrvuYH4*\"\n\nclean_vec(vec)\n##  [1] \"tzmf_ichx6\"  \"v_b_2cpul5\"  \"jpmwpp35k6\"  \"x5z3rqf50tb\" \"hapzkb5jhh\" \n##  [6] \"x3gz6p4_0uu\" \"ofxkhp4q1o\"  \"x_4nvcjw_3\"  \"alg9dwj_ze\"  \"mrprvuyh4\"\n\nclean_vec(factor(vec))\n##  [1] \"tzmf_ichx6\"  \"v_b_2cpul5\"  \"jpmwpp35k6\"  \"x5z3rqf50tb\" \"hapzkb5jhh\" \n##  [6] \"x3gz6p4_0uu\" \"ofxkhp4q1o\"  \"x_4nvcjw_3\"  \"alg9dwj_ze\"  \"mrprvuyh4\"\n\nclean_vec(factor(vec), TRUE)\n##  [1] tzmf_ichx6  v_b_2cpul5  jpmwpp35k6  x5z3rqf50tb hapzkb5jhh \n##  [6] x3gz6p4_0uu ofxkhp4q1o  x_4nvcjw_3  alg9dwj_ze  mrprvuyh4  \n## 10 Levels: alg9dwj_ze hapzkb5jhh jpmwpp35k6 mrprvuyh4 ... x5z3rqf50tb\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">3<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved R: Is there a function to clean factor levels? characters columnwise in a data frame? [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Just use the internal bits from janitor::clean_names(): # #&#8217; &#8216;Clean&#8217; a character\/factor vector like `janitor::clean_names()` does for data frame columns # #&#8217; # #&#8217; Most of the internals are from `janitor::clean_names()` # #&#8217; # #&#8217; @param x a vector of strings or factors # #&#8217; @param refactor if `x` is a factor, return a &#8230; <a title=\"[Solved] R: Is there a function to clean factor levels? characters columnwise in a data frame? [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-r-is-there-a-function-to-clean-factor-levels-characters-columnwise-in-a-data-frame-closed\/\" aria-label=\"More on [Solved] R: Is there a function to clean factor levels? characters columnwise in a data frame? [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[461,321,940,3247],"class_list":["post-15490","post","type-post","status-publish","format-standard","hentry","category-solved","tag-dataframe","tag-r","tag-tidyr","tag-tidyverse"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] R: Is there a function to clean factor levels? characters columnwise in a data frame? [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-r-is-there-a-function-to-clean-factor-levels-characters-columnwise-in-a-data-frame-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] R: Is there a function to clean factor levels? characters columnwise in a data frame? [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Just use the internal bits from janitor::clean_names(): # #&#039; &#039;Clean&#039; a character\/factor vector like `janitor::clean_names()` does for data frame columns # #&#039; # #&#039; Most of the internals are from `janitor::clean_names()` # #&#039; # #&#039; @param x a vector of strings or factors # #&#039; @param refactor if `x` is a factor, return a ... 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