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em96gbr
2006 Jul 16
0
dataframe computation behaviour
Greetings:
I have a simple issue; the (probably cumbersome) code follows:
#_______________________________________________
datmod=(dat)
datmod$em96gbr=ifelse(datmod$em96gbr > 0, log(datmod$em96gbr),
datmod$em96gbr)
datmod$em96spbr=ifelse(datmod$em96spbr > 0, log(datmod$em96spbr),
datmod$em96spbr)
datmod[,4:8]=log(datmod[,4:8])
datmod[,10:13]=log(datmod[,10:13])
datmod[,15:28]=log(datmod[,15:28])
datmod[,4:23]=datmod[,4:23]-datmod$p97
datmod[,25:26]=datmod[,25:26]-datmod$p97
#_________________________________________...