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irina.st.louis4 • 0@a8d9786b
Last seen 19 months ago
I am struggling to import .gpr raw microarray files from a designated folder and begin the analysis. I can read files, but how do I make a matrix? I loaded marray library, then load the 4 GenePix files, and I need to extract the foreground and background median values from the Cy5 and Cy3 channels.
# accessing dir.path <- ("~/Documents/HW2/") Reading ... ~/Documents/HW2//GSM304445.gpr Reading ... ~/Documents/HW2//GSM304446.gpr Reading ... ~/Documents/HW2//GSM304447.gpr Reading ... ~/Documents/HW2//GSM304448.gpr # include your problematic code here with any corresponding output gpr.cdna <- read.HW2(path=dir.path, name.Gf = "F532 Median", name.Gb ="B532 Median", name.Rf = "F635 Median", name.Rb = "B635 Median", name.W ="Flags") # please also include the results of running the following in an R session There were 21 warnings (use warnings() to see them) > warning(gpr.cdna) Error in as.character.default(X[[i]], ...) : no method for coercing this S4 class to a vector sessionInfo( )