hello I get data(GSE37527) from GEO database and I am trying to analyze(normalize and identify DE) them in to R with package AgiMicroRna. Does my Data fit with this package. In my data doesn't exist the columns gMeanSignal and gBGUsed. For my purpose which package is better than another. Please help me thanks in advance -- output of sessionInfo(): R version 2.15.1 (2012-06-22) Platform: x86_64-pc-mingw32/x64 (64-bit) locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] AgiMicroRna_2.6.0 affycoretools_1.28.0 KEGG.db_2.7.1 [4] GO.db_2.7.1 RSQLite_0.11.2 DBI_0.2-5 [7] AnnotationDbi_1.18.4 preprocessCore_1.18.0 affy_1.34.0 [10] limma_3.12.3 Biobase_2.16.0 BiocGenerics_0.2.0 loaded via a namespace (and not attached): [1] affyio_1.24.0 annaffy_1.28.0 annotate_1.34.1 [4] BiocInstaller_1.4.9 biomaRt_2.12.0 Biostrings_2.24.1 [7] Category_2.22.0 gcrma_2.28.0 genefilter_1.38.0 [10] GOstats_2.22.0 graph_1.34.0 grid_2.15.1 [13] GSEABase_1.18.0 IRanges_1.14.4 lattice_0.20-6 [16] RBGL_1.32.1 RCurl_1.95-3 splines_2.15.1 [19] stats4_2.15.1 survival_2.36-14 tools_2.15.1 [22] XML_3.95-0.1 xtable_1.7-0 zlibbioc_1.2.0 -- Sent via the guest posting facility at bioconductor.org.