Hello,
Are you looking for this?
ID_names <- sprintf("id%05d", 1:50000)
head(ID_names)
#> [1] "id00001" "id00002" "id00003" "id00004" "id00005" "id00006"
tail(ID_names)
#> [1] "id49995" "id49996" "id49997" "id49998" "id49999" "id50000"
sprintf with the format %05d pads the integers with zeros to length 5.
And you won't need to combine the 5 vectors, it already is only one.
Hope this helps,
Rui Barradas
Às 20:48 de 13/06/2022, anteneh asmare escreveu:
Dear All, I have the following column name in different data frame and
different size
ID_names1 <- paste0("id0000",1:9)
ID_names2 <- paste0("id000",10:99)
ID_names3 <- paste0("id00",100:999)
ID_names4 <- paste0("id0",1000:9999)
ID_names5 <- paste0("id",10000:50000)
Dose it possible to combine in to a single column in r?
Best,
Hana
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