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}}