[BioC] preprocessCore

irene.vicari at epfl.ch irene.vicari at epfl.ch
Sat Dec 13 12:03:35 CET 2008

I'm doing a project using Affymatrix but I have a problem. To use "RMA" I need
to put in R:

but then when I put
plac.rma <- rma(plac.new)

R tells me
Background correcting
Calculating Expression
Errore in rma(plac.new) :
function 'R_subColSummarize_medianpolish_log' not provided by package

What can I do? Do you have any idea what is the problem?

I do not know if it can be useful if I give you

> sessionInfo()
R version 2.8.0 (2008-10-20)


attached base packages:
[1] splines   tools     stats     graphics  grDevices utils     datasets
[8] methods   base

other attached packages:
 [1] hgu133acdf_2.3.0     geneplotter_1.20.0   annotate_1.20.0
 [4] xtable_1.5-4         AnnotationDbi_1.4.0  lattice_0.17-15
 [7] hgu95av2cdf_2.3.0    affydata_1.11.3      affyPLM_1.18.0
[10] preprocessCore_1.4.0 gcrma_2.14.0         matchprobes_1.14.0
[13] affy_1.20.0          Biobase_2.2.0

loaded via a namespace (and not attached):
[1] affyio_1.8.1       DBI_0.2-4          grid_2.8.0         KernSmooth_2.22-22
[5] RColorBrewer_1.0-2 RSQLite_0.7-0

Thanks a lot.

Best regards,
Irene Vicari

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