Find the first values in vector
Try this: head(vec, sum(cumprod(vec))) The positions: which(head(vec, sum(cumprod(vec))))
On Mon, Nov 9, 2009 at 4:44 PM, Grzes <gregorio99 at gmail.com> wrote:
Hi ! I have a vector: vec= TRUE ?TRUE ?TRUE ?TRUE FALSE FALSE FALSE FALSE TRUE ?TRUE ?FALSE and I'm looking for a method which let me get only the first values equal TRUE from this vector. It means that I want to get a vector: vec_out = ?TRUE ?TRUE ?TRUE ?TRUE or posictions values = TRUE: vec_out = 1,2,3,4 -- View this message in context: http://old.nabble.com/Find-the-first-values-in-vector-tp26271555p26271555.html Sent from the R help mailing list archive at Nabble.com.
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