[R] Integrate na.rm in own defined functions

From: Mauro <mmauro_at_students.unibe.ch>
Date: Wed, 20 Apr 2011 01:59:56 -0700 (PDT)


It`s probably an easy question, but couldn`t figure it out.

I`ve defined a function like:

rmse<-function (x){
dquared<-x^2
sum1<-sum(x^2)
rmse<-sqrt((1/length(x))*sum1)
rmse}

My problem is, that I have NA Values in x and the above function returns NA.

I`m looking for a way to use "na.rm=TRUE" like in for instance mean(x,na.rm=TRUE).

Does anybody know how to do this?

Thank you very much.

Mauro

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