Ruud, try something like the following (not debugged, no coffee yet):
xyplot(coupon.period ~ median, data=prepayment, subscripts=T, panel=function(x,y,subscripts,...){ panel.xyplot(x,y) panel.segments(deel1$lcl[subscripts], deel$ucl[subscripts]) } ) I hope that this helps, Andrew On Sat, Dec 04, 2004 at 08:43:47PM +0100, Ruud H. Koning wrote: > Hello, I have a dataset with three numerical variables, and two factor > variables, one of which is shown: > > > deel1[,1:4] > median ucl lcl coupon.period > 1 10.894672 NA 14.255623 fixed0-1 > 5 12.536729 11.658164 13.341038 fixed1-5 > 9 10.616561 9.979676 11.039264 fixed5-7 > 13 8.457571 8.048390 8.723679 fixed7-10 > 17 7.537831 7.274149 7.895592 fixed10-15 > 21 4.392874 4.279858 4.586663 fixed15more > > Think of the data as six regression coefficients, with an upper and lower > confidence limit. I would like to make a lattice plot, with the factor > (fixed0-1,fixed1-5, etc) on the vertical axis, and the median on the > horizontal axis. This is simple: > > xyplot(coupon.period ~ median,data=prepayment, > panel=function(x,y,...){ > panel.xyplot(x,y) > } > ) > > does the trick. Now I want to have a line extending from the dots > representing the median, that run from the median to upper/lower confidence > limit. How do pass the information of deel1$ucl and deel1$lcl to the panel > function, and how do I make segments within the panel function? > Thanks for any help, Ruud > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Andrew Robinson Ph: 208 885 7115 Department of Forest Resources Fa: 208 885 6226 University of Idaho E : [EMAIL PROTECTED] PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion. ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html