[R] Unexpected error "subset assignment" (bug?)

roger bos roger.bos at gmail.com
Thu Mar 24 17:06:49 CET 2005


I didn't know anything about as.raw(), so I did ?as.raw and it refer
to raw vector, so my guess is that it doesn't work with matrix types. 
The following modified code seems to work, however:

b = matrix(0, 8,8)
q = 1:8
b[1,] = q
b <- as.raw(b)
dim(b) <- c(8,8)

HTH,
Roger


On Thu, 24 Mar 2005 10:32:33 -0500, Tuszynski, Jaroslaw W.
<JAROSLAW.W.TUSZYNSKI at saic.com> wrote:
> Hi,
> 
> I run into following problem. It seems to me that operation in the 3rd line
> should be valid.
> 
> > b = matrix(as.raw(0), 8,8)
> > q = as.raw(1:8)
> > b[1,] = q
> Error: incompatible types in subset assignment
> > length(b[1,])
> [1] 8
> > typeof(b[1,])
> [1] "raw"
> > length(q)
> [1] 8
> > typeof(q)
> [1] "raw"
> 
> Is this a bug or a "feature"?
> 
> Jarek
> =====================================\====
> Jarek Tuszynski, PhD.                               o / \
> Science Applications International Corporation  <\__,|
> (703) 676-4192                        ">  \
> Jaroslaw.W.Tuszynski at saic.com                   `    \
> 
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