[R] Odp: Finding the mean.

Petr PIKAL petr.pikal at precheza.cz
Mon Mar 12 08:13:46 CET 2012


> Using functions how would I go about do this question?
> (I already have a mean defined for a function of x.)
> Write a function called MyMean2. This function has two arguments, x and 
> nonzero, where nonzero has the default value TRUE. This function should 
return the 
> (Previous defined mean of x) if nonzero=FALSE
> (Previous defined mean of x) for all x's>0 if nonzero=TRUE

You already have got an answer but it would be probably better to change 
zeroes to NA values and use 

mean(something, na.rm=T)

If the zeroes have meaning you can leave them, if they represent NA change 
them to NA.

It seems to me better approach.


> Much appreciated.
> elliot.welch at virgin.net
> Sent from my BlackBerry® smartphone
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
> and provide commented, minimal, self-contained, reproducible code.

More information about the R-help mailing list