[R] substring and paste character with a for loop

Chris82 rubenbauar at gmx.de
Thu Feb 3 17:35:56 CET 2011


Hello R users,

I have a little problem with a for loop.
Below there is an simple example of my problem.

I want to delet the commas in the character string. Fore this reason I
create a for loop to unpick the string and rebuild him without the commas.
The problem is, that "paste" does not work in the loop as I expected.

text <- "aaa,bbb,ccc,ddd"

characterseq <- seq(1,15,4)

for (i in characterseq ){
m <- paste(substring(text,i,i+2),sep = "")
}

> m
[1] "ddd"


m should be "aaabbbcccddd" and not just "ddd"



with best regards

Chris
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