[R] Odp: Finding the mean.

[Petr PIKAL]

Hi

> 
> 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.

Regards
Petr


> 
> Much appreciated.
> 
> elliot.welch at virgin.net
> Sent from my BlackBerry® smartphone
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