Why does the assignment of a 3178x93 object to
another 3178x93 object remove the dimension attribute?
> GT <- array(dim = c(6,nrow(InData),ncol(InSNPs)))
> dim(GT)
[1] 6 3178 93
> SNP1 <- InSNPs[InData[,"C1"],]
> dim(SNP1)
[1] 3178 93
> SNP2 <- InSNPs[InData[,"C2"],]
> dim(SNP2)
[1] 3178 93
> dim(pmin(SNP1,SNP2))
[1] 3178 93
> GT[1,,] <- pmin(SNP1,SNP2)
> dim(GT)
NULL # why??????????????????????????????????????
> GT[2,,] <- pmax(SNP1,SNP2)
Error in GT[2, , ] <- pmax(SNP1, SNP2) : incorrect number of subscripts
Knut M. Wittkowski, PhD,DSc
----------------------------------------------------
Sr Research Associate, The Rockefeller University
Biometrician, The Rockefeller University Hospital
Director, Biostatistics/Epidemiology/Research Design
Center for Clinical and Translational Science (CCTS)
apl. Professor, Eberhard-Karls-University, Tübingen
1230 York Ave #121B, Box 322, New York, NY 10021, US
Tel: +1 (212) 327-7175, Fax: +1 (212) 327-8450
[EMAIL PROTECTED], www.rockefeller.edu/ccts/rdbs
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