[R] which

[Y. C. Tao]

Why the last "which" in the following example doesn't
work? Is there a simple way to identify the indices of
array elements that meet multiple criteria?

Thanks.

YC Tao

> x<-1:10
> which(x<5)
[1] 1 2 3 4
> which(x>2)
[1]  3  4  5  6  7  8  9 10
> which(x<5 && x>2)
numeric(0)




		
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