[BioC] error in Loess normalization
Jean Yee Hwa Yang
jean at biostat.ucsf.edu
Wed Nov 3 21:41:23 CET 2004
The new version of marray have included some sampling procedure to speed
up the global loess code. I can test out your problem if you placed the
.RData somewhere I can download.
> I am doing a loess normalization using a subset of genes that dont change.
> I get the following errors.
> > test2CLoess <- maNorm (test2Raw, norm = "loess", subset = nonDE, Mloc =
> TRUE, mscale = TRUE, echo = TRUE)
> Normalization method: loess.
> Normalizing array 1.
> Error in simpleLoess(y, x, w, span, degree, parametric, drop.square,
> normalize, :
> invalid `x'
> I had used the same commands and set of data with the previous version of R
> and marray and limma package, I was trying to check that everything was
> working the same way with the new versions. But the problem may not be related
> to the new versions but to some thing else.
> Where can I find the documentation for what in simpleLoess(y, x, w, span,
> degree, parametric, drop.square, normalize is expecting for x?
> Thanks a lot
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