[R] Odp: How to get vector of poitions in a vector ?

[Petr PIKAL]

Hi

> a = c(1,0,0,0,1,0,4,0,0,0)
> which(a!=0)
[1] 1 5 7

Beware of floating point near zero values.

Petr

r-help-bounces at r-project.org napsal dne 23.07.2010 13:12:44:

> 
> I have a vector a = c(1,0,0,0,1,0,4,0,0,0)
> Now I want to get a vector of positions in a vector a where the value is 
non
> zero..
> How to do it??
> 
> 
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