Dear colleagues, on my new R-2.9.0 /Bioconductor 2.4-Installation, I get an error message when using the function processCGH(): "Error in ncol(log2ratios(MA)) : could not find function "log2ratios"". Unlike the former version of Bioconductor, the function log2ratios() seems to be missing in the current version. Maybe somebody knows more about it. Thanks in advance Winfried Hofmann Output of > sessionInfo() R version 2.9.0 (2009-04-17) x86_64-unknown-linux-gnu locale: LC_CTYPE=C;LC_NUMERIC=C;LC_TIME=C;LC_COLLATE=C;LC_MONETARY=C;LC_MESSAG ES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHON E=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C attached base packages: [1] splines stats graphics grDevices utils datasets methods [8] base other attached packages: [1] marray_1.22.0 aCGHtool_0.9 snapCGH_1.12.0 aCGH_1.18.0 [5] sma_0.5.15 multtest_2.0.0 survival_2.35-4 cluster_1.11.13 [9] DNAcopy_1.18.0 tilingArray_1.22.0 pixmap_0.4-9 Biobase_2.4.1 [13] limma_2.18.0 GLAD_2.0.0 loaded via a namespace (and not attached): [1] AnnotationDbi_1.6.0 DBI_0.2-4 MASS_7.2-46 [4] RColorBrewer_1.0-2 RSQLite_0.7-1 affy_1.22.0 [7] affyio_1.12.0 annotate_1.22.0 genefilter_1.24.0 [10] grid_2.9.0 lattice_0.17-22 preprocessCore_1.6.0 [13] strucchange_1.3-7 tools_2.9.0 vsn_3.12.0 [16] xtable_1.5-5 ---------------------------------------------- Dr. rer. nat. Winfried Hofmann Institut fuer Zell- und Molekularpathologie Medizinische Hochschule Hannover Carl-Neuberg-Str. 1 30625 Hannover Tel.: +49 511 532-4524, Fax: -4521 http://www.mhh.de/zellpathologie.html