[R] bad R bug

[Thomas Lumley]

On Thu, 20 Jul 2000, Bradley C. Love wrote:

> 
> Hi,
> 
> I am not on this mailing list, but here is a terrible bug that has
> stopped me in my tracks.  I am unable to remove observations from a data
> matrix.
> 
> temp is the original matrix.  Notice that there are 288 entries with a
> 104 in the first column.  I attempt to remove these entries, but R does
> not do it.
> 
> brad
> 
> 
> ACTUAL COMMANDS:
> 
> > dim(temp)
> [1] 30528    11
> > table(temp[,1])
<snip>
> > tamp_temp[temp[,1]!=104,]
    ^^^^
  If this is what you typed it's not surprising (tamp vs temp)

> >
> 
> NO EFFECT!
> 
> > table(temp[,1])
<snip>

It works when I try it, on R1.0.0, the oldest version I have access to.

> 
> START UP SCREEN:
> 
> /usr/local/bin/R --vsize 50 --nsize 2000000
> ~:  /usr/local/bin/R --vsize 100 --nsize 3000000
> WARNING: vsize ridiculously low, Megabytes assumed
> 
> R : Copyright 1999, The R Development Core Team
> Version 0.64.2  (July 3, 1999)
          ^^^^^^
          This could also be the problem.

You are unlikely to get much useful help for bugs before 1.0.0 if they
aren't in current versions, since we won't be able to reproduce them.  
There were a lot of bugs in 0.64.2, even just counting the ones we fixed.

Since 1.0.0 things are more stable, and we expect quite a lot of people to
use the forthcoming 1.1.1 for the entire northern hemisphere academic
year.


	-thomas

Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle

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