[R] How to use complicated FUN in apply ?

[José Ernesto Jardim]

Hi everyone

I'm trying to use

sigma2.mat<-apply(ri.mat,2,'-n/2*log(sum(ri.mat^2)/n)')

but it's not working.

Is it wrong to use that kind of FUN in apply ? or am I doing something
wrong ?!

Thank's

ernesto

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