r - Dealing with NaN's in matlab functions

Question

I was wondering if matlab has a built in way to deal with NaN's in function calls. More specifically, I am trying to take the mean of a vector that has a NaN in it. For example, in R

> x = c(1,2,3,4,NA)
> mean(x)
[1] NA
> mean(x,na.rm=TRUE)
[1] 2.5

Is there something comprable to this in Matlab that is in one line (I don't want to write my own function nor have to loop to find NaN's before calculating the mean).

Also, I do not have access to the statistics toolbox so I can't use something like nanmean().

Answer 1

You could do something like mean(x(~isnan(x))). If you want you could also write a bunch of wrappers like this and put them in your startup.m file.