Hello,

Use ?rep.
Since you say you have a file, in the code below I will read the data from a connection. Then create the string.


txtfile <- "ABC 3
DDG 5
ABB 2"

tc <- textConnection(txtfile)
df1 <- read.table(tc)
close(tc)

rep(df1[[1]], df1[[2]])
#[1] "ABC" "ABC" "ABC" "DDG" "DDG" "DDG" "DDG" "DDG" "ABB" "ABB"


Hope this helps,

Rui Barradas


Às 14:27 de 06/07/21, Evan Cooch escreveu:
Suppose I have a file with the the following structure - call the two space-separated fields 'label' and 'count':

ABC 3
DDG 5
ABB 2


What I need to do is parse each line of the file, and then depending on the value of count, write out the value of 'label' to a new file, but 'count' times. In other words, take the preceding, and output

ABC
ABC
ABC
DDG
DDG
DDG
DDG
DDG
ABB
ABB

I was wondering if there was an elegant/simple way to do this? I can do this relatively easily in perl, or awk, but am stumped by getting a bit of R code to accomplish the same thing.

Many thanks in advance...

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