R help - Aug 2010 - Problem with cast {reshape}: Error in match.fun(FUN) : could not find function "Negate"

Dear All

I'm having problem with some script which worked a few months ago (on a
different computer that might well have had a different version of R
installed, so perhaps it has to do with the old version of R?):

library(reshape)
Loading required package: plyr
> tble.data <- melt.array(interp,
varnames=c("tme","lon","lat"))
>
> allyrs.interp <- cast(tble.data,formula= lon ~ lat ~ tme)
Error in match.fun(FUN) : could not find function "Negate"
> class(interp)
[1] "array"
> dim(interp)
[1] 60 95 59
>
> version
               _
platform       i486-pc-linux-gnu
arch           i486
os             linux-gnu
system         i486, linux-gnu
status
major          2
minor          6.2
year           2008
month          02
day            08
svn rev        44383
language       R
version.string R version 2.6.2 (2008-02-08)

I might be off track here, but I did an online search for any 'Negate'
function and the only one I found was in the roxygen package, which I am
fairly certain was never installed on the computer on which this script
worked before.

Thanks very much for any help,

Jock Currie

	[[alternative HTML version deleted]]

Negate is in the base package, although apparently not in the
prehistoric version of R you're using here!  Updating to the
latest R should work.

Jock Currie wrote:
> Dear All
> 
> I'm having problem with some script which worked a few months ago (on a
> different computer that might well have had a different version of R
> installed, so perhaps it has to do with the old version of R?):
> 
> library(reshape)
> Loading required package: plyr
>> tble.data <- melt.array(interp,
varnames=c("tme","lon","lat"))
>>
>> allyrs.interp <- cast(tble.data,formula= lon ~ lat ~ tme)
> Error in match.fun(FUN) : could not find function "Negate"
> 
>> class(interp)
> [1] "array"
>> dim(interp)
> [1] 60 95 59
>> version
>                _
> platform       i486-pc-linux-gnu
> arch           i486
> os             linux-gnu
> system         i486, linux-gnu
> status
> major          2
> minor          6.2
> year           2008
> month          02
> day            08
> svn rev        44383
> language       R
> version.string R version 2.6.2 (2008-02-08)
> 
> I might be off track here, but I did an online search for any
'Negate'
> function and the only one I found was in the roxygen package, which I am
> fairly certain was never installed on the computer on which this script
> worked before.
> 
> Thanks very much for any help,
> 
> Jock Currie
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.