Hi!
tmpdata-subset(myd, TYPE==A)
levels(tmpdata$TYPE)
[1] A B C
I'd like to get only A as output...
rebuild the factor after subsetting:
tmpdata$TYPE - factor(tmp$TYPE)
If you want the levels of all factors in your data frame to be
adjusted you could also use:
tmpdata -
Hiya
I'd like to get only A as output...
two solutions:
1.-use unique()
unique(tempdata$TYPE)
to get your answer
2.-or call factor again to reduce the levels:
tmpd - subset(myd,clas==A)
levels(tmpd$clas)
[1] A B C
tmpd$clas - factor(tmpd$clas)
levels(tmpd$clas)
[1] A
regards,