Yes, see mapply.
On Sat, Sep 5, 2009 at 12:18 PM, Peng Yu <pengyu...@gmail.com> wrote:
> Hi,
>
> I am wonder if there is a function similar 'apply' but it could accept
> multiple arguments?
>
> For example, I have the following matrix.
> x=matrix(1:6,nr=2)
> y=matrix(1:6,nr=2)
>
> I want to find a function that can be used to compute the linear
> regression for each pair of rows in the two matrices?
>
> multiple_apply(x,y,1,function(u,v){lm(u ~ v)}
>
> That is, I wound like something like the above to compute the
> following. Can somebody let me know if there is such an command in R?
>
> lm(x[1,]~y[1,])
> lm(x[2,]~y[2,])
>
> Regards,
> Peng
>
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--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O
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