search for: mergedf

...<- c("RowA", "RowB", "RowC")>>File1_DF <- read.delim("\\\\DirectoryToFiles\\File1_Folder\\File1.txt", stringsAsFactors=FALSE, check.names=FALSE)>File1_DF <- as.data.frame(t(File1_DF[MyRows,]))>File1_DF <- as.data.frame(t(File1_DF))>mergeDF <- merge(mergeDF,File1_DF, by.x = "Row.names", by.y="row.names")>>File2_DF <- read.delim("\\\\DirectoryToFiles\\File2_Folder\\File2.txt", stringsAsFactors=FALSE, check.names=FALSE)>File2_DF <- as.data.frame(t(File2_DF[MyRows,]))>File2_DF <- as.d...

...s that merge() dosen't keep the unmatched lines. Is there another function that I could use to merge the data frames. Example: completedf <- expand.grid(alpha=letters[1:3],beta=1:3) partdf <- data.frame( alpha= c('a','a','c'), beta = c(1,3,2), val = c(2,6,4)) mergedf <- merge(x=completedf, y=partdf, by=c('alpha','beta')) # it only kept the common rows nrow(mergedf) Thanks, Etienne -- View this message in context: http://www.nabble.com/Merge-data-frame-and-keep-unmatched-tp23962874p23962874.html Sent from the R help mailing list archive at...