search for: iglewicz

Hi all, Does anyone have an R implementation of the queplot (K.?M. Goldberg and B.?Iglewicz. Bivariate extensions of the boxplot. Technometrics, 34(3):pp. 307?320, 1992)? I'm struggling with the estimation of the asymmetry parameters. Hadley -- Assistant Professor / Dobelman Family Junior Chair Department of Statistics / Rice University http://had.co.nz/

...Data. On occasion, I have used the Wilk-Shapiro W statistic in SAS. A point in the right direction or an R code example would help greatly. After I trim the outliers, I will need to show which labs were eliminated but that should be fairly trivial. The reference in Appendix A is: Hoaglin, D. C., Iglewicz, B., Tukey, J. W., Performance of Some Resistant Rules for Outlier Labeling, Journal of the American Statistical Association, Vol. 81, No. 396 (Dec., 1986), pp. 991-999. The ASTM E 178 reference is: Shapiro, S. S., and Wilk, M. B., An Analysis of Variance Test for Non-Normality (Complete Samples),...

For boxplot(), is it possible to pass in a parameter to change the default way that the 1st and 3rd quartiles are computed? (specifically, I'd like to use type 6 described in the quantile function). Also, what are the options for how outliers are computed, and how can one change them? Thank you [[alternative HTML version deleted]]