Convert R vector to string vector of 1 element [du

问题:

This question already has an answer here:

• Concatenate a vector of strings/character 5 answers

Im working with the programming language R now. I have a vector:

a <- c("aa", "bb", "cc")

And I want to paste these to a system command, I'm trying it this way now:

args <- paste(a, sep=" ")
system(paste("command",args, sep=" "))

But now I'm only getting the arguments aa, and I want the arguments aa, bb and cc...

Anyone knows what I'm doing wrong?

回答1:

Use the collapse argument to paste:

paste(a,collapse=" ")
[1] "aa bb cc"