Full_Name: David Leong Version: 2.7.2 OS: Windows XP Submission from: (NULL) (12.187.86.2)
It appears for the fivenum function, there is a strait average between two ranked samples. This should be a linear interpolation between ranks. For the following data set #data CaCO3<-c(130.8,129.9,131.5,131.2,129.5,132.7,131.5,127.8,133.7,132.2,134.8,131.7,133.9,129.8,131.4,128.8,132.7,132.8,131.4,131.3) fivenum reports 127.80 130.35 131.45 132.70 134.80 130.35 should be 130.125. The other are correct. For the 20 points, the rank is (20+1)/4=5.25 so the weighting factor is 0.25 not 0.5. ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
