Thanks David. I used the wtd.quantile in Hmisc. Works great and is easy for a newbie like me.
I am attempting to send the quantile values to boxplot, and it works for the most part. My problem is that one of my extreme values appears as a dot instead of the "whisker". It basically looks like an outlier dot. I attached the image. Here is my specific example: bxp.data <- c(0,0.9,3.5,9.4,30.6) boxplot(bxp.data) http://n4.nabble.com/file/n1008453/boxplot.example.bmp If anyone has any ideas to make my extreme valu behave like a proper whisker, please let me know. Thanks, Sean David Winsemius wrote: > > > On Oct 28, 2009, at 8:00 PM, Sean Parks wrote: > >> >> Hi, >> >> I would like to make a box and whisker plot but use a sample weight >> for each >> observation. I've searched around a bit and have not found a method >> of >> doing this. >> >> Anyone have any advice? > > There are a variety of ways to get weighted quantiles. Two that have > come up in recent r-help postings are the facilities in the quantreg > package and wtd.quantile in Hmisc. Once you have calculated the five > numbers that define a box-whisker plot they can be passed to bxp. > > ?bxp >> > -- > > David Winsemius, MD > Heritage Laboratories > West Hartford, CT > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > -- View this message in context: http://n4.nabble.com/sample-weight-for-box-plot-tp847253p1008453.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.