Entering edit mode
dibakar ray
▴
40
@dibakar-ray-413
Last seen 10.2 years ago
Would any one explain what is the meaning of the following lines of
code
(this is part of the tutorial Computational and Statistical Aspects of
Microarray Analysis, University of Milan, May 2003,
Lab5 and Lab6)
--------- Problem no 1 ---------------
# DO NOT UNDERSTAND THE FOLLOWING LINES.
> golubTrainSub <- golubTrain[sub, ]
> golubTrainSub@exprs <- X
> Y <- golubTrainSub$ALL.AML
#I UNDERSTAND THE FOLLOWING LINE
> Y <- paste(golubTrain$ALL.AML, golubTrain$T.B.cell)
# DO NOT UNDERSTAND THE FOLLOWING ONE.
> Y <- sub("NA", "", Y)
---------- Problem no 2 ----------------------
From Lab6 Code, the following is OK
================================
> data(golubTrain)
> data(golubMerge)
> data(golubTest)
> gTrn <- GolubTrans(golubTrain)
> gTest <- GolubTrans(golubTest)
> gMerge <- GolubTrans(golubMerge)
> mmfun <- mmfilt()
> ffun <- filterfun(mmfun)
> sub <- genefilter(gTrn, ffun)
But why we need to set the following element False?
> sub[c(2401, 3398, 4168)] <- FALSE
===========================??????? ===================
Thanks in advance
Dibakar Ray
