[R] compare multiple values with vector and return vector

[mohamed.lajnef at inserm.fr]

Hi Joris

Try Is.element function: is.element (x,y)

Regards
mohamed

Joris Meys <jorismeys at gmail.com> a écrit :

> Dear all,
>
> I have a vector, and for each element I want to check whether it is equal to
> any element from another vector. I want a vector of logical values with the
> length of the first one as return. In R this would be :
>
>> x <- 1:10
>> sapply(x,function(y){any(y==c("2","3","4"))})
> [1] FALSE  TRUE  TRUE  TRUE FALSE FALSE FALSE FALSE FALSE FALSE
>
> It works pretty smooth, but I have the feeling there's a less complicated
> way of doing it. My code should be readable by programmers who are not
> really familiar with R, but I hate to use for-loops as I have pretty huge
> datasets. Anybody an idea?
> thank you in advance.
>
> Cheers
> Joris
>
> --
> Joris Meys
> Statistical Consultant
>
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>
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>
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