{"id":4682,"date":"2022-08-23T23:25:16","date_gmt":"2022-08-23T17:55:16","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/"},"modified":"2022-08-23T23:25:16","modified_gmt":"2022-08-23T17:55:16","slug":"solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/","title":{"rendered":"[Solved] Dataframe with string columns – each column need to split into multiple at word “and” – R [closed]"},"content":{"rendered":"

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Here is what worked for me – using inputs from above and various other threads on SO. I am a complete newbie to R and my objective is to migrate work from excel to R.<\/p>\n

# returns string w\/o leading or trailing whitespace\ntrim <- function (x) gsub(\"^\\\\s+|\\\\s+$\", \"\", x)\n\n#--------------------------------------------------------------------------------\n# OBJECTIVE - migrate this activity from excel + VBA to R\n#\n# split and find out max cols required - each element in dataframe is a list of\n#variable length - objective is to convert it into individual columns with number of \n#columns = maximum size of list - for the rows with less number of entries the\n#additional columns will contain \"NA\"\n---------------------------------------------------------------------------------\n\ntemp_split<-strsplit(src.df$PREV,\"and\")\nmax_col=max(unlist(lapply(temp_split,length),recursive=TRUE))\n\n# add to dataframe with fixed row and max_col\n# keep columns empty - if no data\n\nadd_list <- function (x,max_col){\nu_l <- unlist(x)\nl<-length(unlist(x))\npad_col = max_col - l\nr_l <- c(u_l, rep(\"NA\",pad_col))\nreturn(r_l)\n}\n\ntest<-lapply(temp_split,add_list,max_col)\ntest_matrix<-data.frame(matrix(unlist(test,recursive=TRUE),nrow=NROW(src.df),byrow=T))\n\nt.df<-test_matrix\nc.df<-cbind(src.df,t.df)\n<\/code><\/pre>\n<\/p><\/div>\n
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solved Dataframe with string columns – each column need to split into multiple at word “and” – R [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] Here is what worked for me – using inputs from above and various other threads on SO. I am a complete newbie to R and my objective is to migrate work from excel to R. # returns string w\/o leading or trailing whitespace trim <- function (x) gsub(“^\\\\s+|\\\\s+$”, “”, x) #——————————————————————————– # OBJECTIVE – … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[321,568,362],"class_list":["post-4682","post","type-post","status-publish","format-standard","hentry","category-solved","tag-r","tag-split","tag-string"],"yoast_head":"\n[Solved] Dataframe with string columns - each column need to split into multiple at word "and" - R [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Dataframe with string columns - each column need to split into multiple at word "and" - R [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Here is what worked for me – using inputs from above and various other threads on SO. I am a complete newbie to R and my objective is to migrate work from excel to R. # returns string w\/o leading or trailing whitespace trim <- function (x) gsub("^\\s+|\\s+$", "", x) #-------------------------------------------------------------------------------- # OBJECTIVE - ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-08-23T17:55:16+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] Dataframe with string columns – each column need to split into multiple at word “and” – R [closed]\",\"datePublished\":\"2022-08-23T17:55:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/\"},\"wordCount\":75,\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"keywords\":[\"r\",\"split\",\"string\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/\",\"url\":\"https:\/\/jassweb.com\/solved\/solved-dataframe-with-string-columns-each-column-need-to-split-into-multiple-at-word-and-r-closed\/\",\"name\":\"[Solved] Dataframe with string columns - 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I am a complete newbie to R and my objective is to migrate work from excel to R. # returns string w\/o leading or trailing whitespace trim <- function (x) gsub(\"^\\s+|\\s+$\", \"\", x) #-------------------------------------------------------------------------------- # OBJECTIVE - ... 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