The problem is the 'cat' enclosing the 'print'; just get rid of the
'cat' -- that is what is causing the extra output
On Tue, Sep 14, 2010 at 3:34 PM, Peng, C <cpeng....@gmail.com> wrote:
>
> It is still visible even it is set invisible(NULL):
>
>> fn1 <- function(n = 5){
> + mat <- matrix(rnorm(5*5), 5, 5)
> + cat(print(mat))
> + invisible(NULL)}
>> fn1()
> [,1] [,2] [,3] [,4] [,5]
> [1,] -1.22767085 -1.41468587 -2.0156231 0.29732942 0.5755600
> [2,] -0.16775996 -0.03780596 -0.9461079 0.91289175 0.1254273
> [3,] 0.09696032 -0.75522210 -0.7494442 -0.21341669 1.7088194
> [4,] 0.13535505 -1.09011005 -0.6074198 0.05342614 -1.1996344
> [5,] 0.66474083 -2.62206248 0.1329972 0.06132865 0.5124778
> -1.227671 -0.1677600 0.09696032 0.1353550 0.6647408 -1.414686 -0.03780596
> -0.7552221 -1.09011 -2.622062 -2.015623 -0.9461079 -0.7494442 -0.6074198
> 0.1329972 0.2973294 0.9128917 -0.2134167 0.05342614 0.06132865 0.57556
> 0.1254273 1.708819 -1.199634 0.5124778>
>>
> --
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--
Jim Holtman
Cincinnati, OH
+1 513 646 9390
What is the problem that you are trying to solve?
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