On Wednesday 02 March 2005 16:24, Erin Hodgess wrote: > Dear R People: > I have a data frame with the variables calories, sodium and "type", > where type is either zero or one. > > I would like to produce a scatterplot with sodium on the horizontal, > calories on the vertical and have the dots be clear when type is one > and black when type is zero. > > It can be done via lines and points, but I was wondering if there is > a better way with lattice graphics.
How about something like xyplot(calories ~ sodium, groups = type, col = 'black', pch = c(16, 1)) ? -Deepayan ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html