Ulrich Leopold <[EMAIL PROTECTED]> writes: > > E.g., > > mydata$difference <- mydata$x - mydata$y > > > > That's what I thought, but I get the following message: > > > propLSK.STONE.Pox0t30$Pox0t30STONE-propLSK.STONE.Pox0t30$Pox0t30 > numeric(0) > > Does it mean the resulting vector is empty? If yes, what could be the > reason for it? Both columns are available: > > UGreen Pox0t30 Pox0t30Stone > 1 0 37.150000 16.461500 > 2 0 6.833330 7.464404 > 3 0 9.750000 15.616870 > 4 0 15.050000 19.146500 > 5 0 13.266700 10.515750 > 6 0 34.300000 27.304840 > 7 0 45.800000 27.217171 > 8 NA 23.200000 16.844601 > 9 0 13.600000 28.051821 > 10 0 16.750000 6.021914 > 11 0 16.433300 3.832123 > 12 0 17.333300 3.905555 > > > What am I missing?
Case sensitivity, it seems... -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
