ifelse(myvec == 0, FALSE, TRUE) # set 0 to FALSE, other values to TRUE
On Sun, Oct 30, 2011 at 3:50 PM, Alaios <ala...@yahoo.com> wrote:
> probably you mean
>
>
>
>
> For ‘[’-indexing only: ‘i’, ‘j’, ‘...’ can be logical
> vectors, indicating elements/slices to select. Such vectors
> are recycled if necessary to match the corresponding extent.
> ‘i’, ‘j’, ‘...’ can also be negative integers, indicating
> elements/slices to leave out of the selection.
>
>
>
> How can i convert the positives to TRUE and zeros and FALSE?
>
>
>
> ________________________________
> From: William Dunlap <wdun...@tibco.com>
>
> Sent: Sunday, October 30, 2011 9:17 PM
> Subject: RE: [R] why the a[-indx] does not work?
>
> > a[overLoadTesT==0]
> [1] 2 4 5 6 7 8 9 10
> Look into help('[') or help('Subscript') to see
> how integer and logical (Boolean) subscripts differ.
>
> Bill Dunlap
> Spotfire, TIBCO Software
> wdunlap tibco.com
>
>> -----Original Message-----
>> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
>> Behalf Of Alaios
>> Sent: Sunday, October 30, 2011 11:52 AM
>> To: R-help@r-project.org
>> Subject: [R] why the a[-indx] does not work?
>>
>> Dear all,
>>
>> Could you please explain me why
>>
>> > OverloadsTesT
>> [1] 1 0 1 0 0 0 0 0 0 0
>> > a<-matrix(data=seq(1,10),nrow=10)
>> > a
>> [,1]
>> [1,] 1
>> [2,] 2
>> [3,] 3
>> [4,] 4
>> [5,] 5
>> [6,] 6
>> [7,] 7
>> [8,] 8
>> [9,] 9
>> [10,] 10
>> > a[-OverloadsTesT]
>> [1] 2 3 4 5 6 7 8 9 10
>>
>>
>>
>> the last line does not remove the first and third element and only does the
>> first element.?
>>
>> What I want to do is for zeros to return the elements and for any positive
>> value to remove it.
>> What I am doing wrong?
>>
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