Answer by chinsoon12 for Merge data.tables while keeping original order in R
An option is to pass in sort=FALSE into merge:test <- merge(dt, ids, by.x="g1", by.y="labels", sort=FALSE)test2 <- merge(test, ids, by.x="g2", by.y="labels", sort=FALSE)test2[, match :=...
View ArticleAnswer by dario for Merge data.tables while keeping original order in R
Solution using dplyr:library(data.table)set.seed(100)dt <- data.table(g1=c("A", "B", "C", "D", "E", "F", "L", "O", "P", "J"), g2=c("G", "D", "C", "H", "K", "J", "L", "U", "I", "R"), value=...
View ArticleMerge data.tables while keeping original order in R
I would like to merge two data tables while keeping the original order of the data tables. I would also like to have a final column to say whether the two ids match each other. All of this while...
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