[R] nrow()

[Peter Ehlers]

?is.nan

Peter Ehlers

On 2011-02-22 07:11, Sandra Stankowski wrote:
> Hey there,
>
> I tried to count the number of rows, where my data isn't NaN in a
> certain column.
>
> this was my guess:
>
> (given is a data frame with 2069 rows and 17 cols)
>
> NROW(data[jan,16] != NaN)
>
> ("jan" is defined this way: jan<- which(data[,2]==1, arr.ind= TRUE))
>
>
> but I only get the number of columns where my data is "1" in the second
> col. R isn't removing the NaN.
> na.rm isn't working here.
>
> I would appreciate your help.
>
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