[R] How to 'apply' on multiple arguments?

Peng Yu pengyu.ut at gmail.com
Sat Sep 5 17:18:00 CEST 2009


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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