[R] Conditional rows

[Gabor Csardi]

which(apply(test<=0.2, 1, all))

See ?which, ?all, and in particular ?apply.

Gabor

On Mon, Feb 11, 2008 at 06:22:09PM +0800, Ng Stanley wrote:
> Hi,
> 
> Given a simple example,  test <- matrix(c(0.1, 0.2, 0.1, 0.2, 0.1, 0.1, 0.3,
> 0.1, 0.1), 3, 3)
> 
> How to generate row indexes for which their corresponding row values are
> less than or equal to 0.2 ? For this example, row 2 and 3 are the correct
> ones.
> 
> Thanks
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Csardi Gabor <csardi at rmki.kfki.hu>    UNIL DGM