John Christie <[EMAIL PROTECTED]> writes: > what does this mean in R-1.8.1 release notes? > > o median() no longer `works' for odd-length factor variables.
The median has always been undefined for factors, but nevertheless median() gave an answer. If the length was even, it would fail since it needed to average non-numeric values. This confused some and the answer you got for in the odd-length case was meaningless anyway (what's the median of three pears, four apples, and two bananas?). So now we check. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
