On 5/19/2008 6:13 AM, Naira wrote:
Dear all,
I would like to know if there is an easy to transform a vector of strings to
a vector of integers.
Ex:
("ab","ab","bb","cat","cat","ab") will be
(1, 1, 2, 3, 3, 1)
X <- c("ab","ab","bb","cat","cat","ab")
as.numeric(as.factor(X))
[1] 1 1 2 3 3 1
Thx,
Naira
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