How to collapse a list of characters into a single string in R

You can do it with paste function

    > paste(c('A', 'B', 'C'), collapse=', ' )
    [1] "A, B, C"

You can do it with str_c function

> library('stringr')
> str_c(c('A','B','C'),collapse=',')    
[1] "A,B,C"

The shortest method is to use the base toString function. In any case the output string will contain commas

vector<-c('A', 'B', 'C')

toString(vector)

if you don't want commas

gsub(",","",toString(vector))

If you want any other separator you can substitute anything you like in gsub instead of replacing commas with nothing

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