Paste together two character vectors of different lengths

Question

I have two different character vectors in R, that I want to combine to use for column names:

groups <- c(\"Group A\", \"Group B\")
label <- c(\"Time\",         


        

Answer 1

outer

outer(groups, labels, FUN=paste)

Answer 2

Probably outer helps your work. Try this:

> c(t(outer(groups, label, paste)))
[1] "Group A Time" "Group A Min"  "Group A Mean" "Group A Max"  "Group B Time" "Group B Min" 
[7] "Group B Mean" "Group B Max" 

Answer 3

Since it's two element array, I would do

 c(paste(groups[1],label),paste(groups[2],label))