[R] trouble with data frame

[Marc Girondot]

Le 22/03/13 12:34, Sahana Srinivasan a écrit :
> while (a<=10)
> {
> while (b<=10)
> {
> n<-as.numeric(df[a,b)];
> ...;
> }
> }
>
> The problem is that when I print out 'n' I get the following errors :
> "NULL" (if printed without as.numeric), and "numeric(0)" if printed with
> the as.numeric.
Perhaps with

n<-as.numeric(df[a,b])

)] are reversed

Marc



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