See ?make.unique
On Mon, 16 Jun 2008, Daren Tan wrote:
I have a column containing duplicate entries and need to append numeric
suffixes to make them unique. How ?
e.g., paste("id", c(1:10,1,5,10,10), sep=".")
[1] "id.1" "id.2" "id.3" "id.4" "id.5" "id.6" "id.7" "id.8" "id.9"[10] "id.10" "id.1"
"id.5" "id.10" "id.10"
I hope to get
[1] "id.1" "id.2" "id.3" "id.4" "id.5" "id.6" "id.7" "id.8" "id.9"[10] "id.10" "id.1.1"
"id.5.1" "id.10.1" "id.10.2"
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--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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