search for: rp139

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2007 Jan 12
1
mean on a table
...c("by.1", "by.0")) : attempt to set an attribute on NULL The structure of my table is as follows. > str(no.genot) table [, 1:467] 0.000 0.261 0.315 0.274 0.349 ... - attr(*, "dimnames")=List of 1 ..$ : chr [1:467] "NC" "RP138" "RP139" "RP140" ... Strangely enough > mean(no.genot[1:467]) [1] 0.2426167 That seems to work. -- Farrel Buchinsky Mobile: (412) 779-1073