Question: Error while building ExpressionSet from scratch....
7.8 years ago by
Bas Jansen • 150
Bas Jansen • 150 wrote:
Hi Bioconductor gurus: I am trying to make ExpressionSet files for the analysis of PCR arrays, to be able to analyze them in LMGene. However, I get the following error message: > eSet_xxx <- new("ExpressionSet", exprs = exprs_xxx, phenoData = phenoData_xxx, experimentData = experimentData) Error in function (classes, fdef, mtable) : unable to find an inherited method for function "annotatedDataFrameFrom", for signature "data.frame" I have done this a gazillion times before without a hitch, and suddenly I'm not able to do so anymore. If anyone knows what's going on, I am all ears. Kind regards, Bas > sessionInfo() R version 2.13.2 (2011-09-30) Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) locale:  C/UTF-8/C/C/C/C attached base packages:  splines tools stats graphics grDevices utils datasets  methods base other attached packages:  LMGene_2.8.0 affy_1.30.0 survival_2.36-10 multtest_2.8.0  Biobase_2.12.2 loaded via a namespace (and not attached):  MASS_7.3-14 affyio_1.20.0 preprocessCore_1.14.0  tcltk_2.13.2
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