frespider wrote
> Hi,
>
> is there a way I can calculate a summary statistics for a columns matrix
> let say we have this matrix
> x <- matrix(sample(1:8000),nrow=100)
> colnames(x)<- paste("Col",1:ncol(x),sep="")
>
> if I used summary
> summary(x)
>
> i get the output for each column but I need the output to be in matrix
> with rownames and all the columns beside it
>
> this how I want it
>
> Col76 Col77
> Min. : 7 39
> 1st Qu. : 1846 1630
> Median : 3631 3376
> Mean : 3804 3617
> Sd :
> 3rd Qu.: 5772 5544
> IQR :
> Max. : 7952 7779
>
> Is there an easy way?
>
> Thanks
How about ...
x <- matrix(sample(1:8000),nrow=100)
colnames(x)<- paste("Col",1:ncol(x),sep="")
apply(x,2,function(x) c(summary(x), sd=sd(x), IQR=IQR(x)))
HTH
Pete
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