[BioC] Problem with limma - psigamma?

[Gordon K Smyth]

> Hi,
>
> I'm using R 1.9.0 and limma 1.5.6 (latest win32).
>
> I ran the following commands and got this error.
>
>>files <- dir(pattern="*.spot")
>>RG <- read.maimages(files, source="spot")
>>RG$genes <- readGAL("GAL.tbl")
>>RG$printer <- getLayout(RG$genes)
>>MA <- normalizeWithinArrays(RG)
>>MA <- normalizeBetweenArrays(MA)
>>fit <- lmFit(MA, design=c(-1,1,-1))
>>fit <- eBayes(fit)> version
         _
> Error in tetraGamma(y) : couldn't find function "psigamma"
>
> Anyone able to help? Am I doing something wrong?

Are you sure that you're using R 1.9.0?  psigamma() is a new function in R
1.9.0:

> psigamma
function (x, deriv = 0)
.Internal(psigamma(x, deriv))
<environment: namespace:base>

> version
platform i386-pc-mingw32
arch     i386
os       mingw32
system   i386, mingw32
status   alpha
major    1
minor    9.0
year     2004
month    03
day      17
language R

Gordon

> Thanks
> Matt