[R] Identify duplicate numbers and to increase a value
Ortiz, John
OrtizJ at si.edu
Thu Jan 20 16:12:33 CET 2011
Hi everybody.
I want to identify duplicate numbers and to increase a value of 0.01 for each time that it is duplicated.
Example:
x=c(1,2,3,5,6,2,8,9,2,2)
I want to do this:
1
2 + 0.01
3
5
6
2 + 0.02
8
9
2 + 0.03
2 + 0.04
I am trying to get something like this:
1
2.01
3
5
6
2.02
8
9
2.03
2.04
Actually I just know the way to identify the duplicated numbers
rbind(x, duplicated(x) | duplicated(x, fromLast=TRUE))
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
x 1 2 3 5 6 2 8 9 2 2
0 1 0 0 0 1 0 0 1 1
Some advice?
Thanks and regards
John Ortiz
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