Hi Everybody: I want to draw some chart using command "histogram" and add another curve in it. Example:
require(stats) data(singer) library(lattice) histogram( ~ height | voice.part, data = singer, nint = 17, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = .5, xlab = "Height (inches)") Now I got a chart of 8 blocks, then I need add :" abline(v=mean(singer$height), col=2, lwd=2) " or any other curve to every block. How can I do to achieve it. Thanks. Best Regards YiYao Jiang Product Division/ product Testing Department Semiconductor Manufacturing International Corporation 18 ZhangJiang Road, PuDong New Area, Shanghai ZIP: 201203 Tel:86-21-5080-2000 Ext. 15173 ______________________________________________ [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
