How can I concatenate vectors in loop in R

Question

everyone

I brought some new trivial questions to ask. I've searched, but I failed to look for the most efficient answer.

The string(or list) I would like to make looks like:

c("who","expr1","who","expr2",...,"who","expr100")

How can I efficiently make this string using loop(or another function) in R?

Thank you~!!

Zheyuan Li · Accepted Answer · 2017-05-12 12:28:39Z

3

At least this is one choice:

c(rbind("who", paste0("expr", 1:100)))

answered May 12, 2017 at 12:28

Zheyuan Li

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