Ahmet, Try the following syntax: tapply(slp_jeo2$slp,slp_jeo2$jeo,mean, na.rm = T)
Steve -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of temiz Sent: Tuesday, April 24, 2007 1:22 PM To: r-help@stat.math.ethz.ch Subject: [R] problem in tapply command hello when I entered following command, I got NA values for some catagories. > tapply(slp_jeo2$slp,slp_jeo2$jeo,mean ) 999 Ca Cka DCy Jh JKi Kk 14.06665 NA 14.60445 NA NA NA NA NA KTa KTac Ku Kua Kus Ky Kyk ODe NA NA NA NA NA NA NA 17.87489 PTRc Qa Tc Tkisd NA NA NA 19.64067 how can I correct this problem ? regards -- Ahmet Temiz -- This message has been scanned for viruses and\ dangerous\ co...{{dropped}} ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
