On Wed, Oct 28, 2009 at 8:19 PM, Bill Gillespie <bi...@metrumrg.com> wrote: > I currently use lattice functions to produce multiple pages of plots using > the "layout" argument to specify the number of rows and columns of panels, > e.g., > > xyplot(price ~ carat | clarity, diamonds, layout = c(2, 2)) > > This results in 2 pages of 4 panels each. "diamonds" is a data.frame > distributed with ggplot2. > > I would like to do the same with ggplot2 but have been unsuccessful. The > following sequence of statements seemed like a logical way to do it: > p <- ggplot(diamonds, aes(carat, price)) > p + geom_point() + facet_wrap(~clarity, ncol = 2, nrow = 2) > But they result in the error statement: "Error in nrow * ncol : non-numeric > argument to binary operator". > > Is facet_wrap or facet_grid capable of producing multiple pages of plots > and, if so, how?
Not automatically - it's up to you to figure out how to split the factor levels in pages and then create the appropriate subsets. Hadley -- http://had.co.nz/ ______________________________________________ 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.
