Re: [R] why the a[-indx] does not work?

[Alaios]

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?
> 
> B.R
> Alex
>     [[alternative HTML version deleted]]
> 
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