The problem is in the code. When you say >> mysummary<-tapply(myfactor,mydata,length) >> mysummary
you have used mydata as a factor and myfactor as the data. tapply has (correctly) used the ordered labels in the grouping factor (mydata) to label its output. If you did what you probably intended: tapply(mydata, myfactor,length) you'll get the order you expected. ******************************************************************* This email and any attachments are confidential. Any use...{{dropped:8}} ______________________________________________ R-help@r-project.org 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.