Hi R fans, As a newbie following the five-hour rule (after hitting my head against the wall for five hours, post to this list), I am appealing for some help understanding geom_rect() in ggplot2.
What I want to do is very simple. I want to generate a plot of rectangles. Each one represents a business cycle. The x-values will be pairs representing the start and end of each cycle. The y-values represent the duration of the cycle (in months). In other words, all rectangles have coordinates (start, duration) and (end, duration). rr I've spent hours trying to figure out the documentation and pouring over Google and RSeek searches and am at an impasse. The documentation refers to xmin, xmax, ymin, and ymax but doesn't say anything about them. The only example gives them both as vectors, so I assume they refer to a sequence of coordinates in which each rectangle's vertices is given by (xmin[i],ymin[i]), (xmin[i],ymax[i]), (xmax[i],ymax[i]), and (xmax[i],ymin[i]). But when I try to plot something simple using this understanding, I get a blank plot. Here's my code: df <- data.frame( xmin = c(1,5), xmax = c(2,7), ymin = c(0,3), ymax = c(2,5) ) ggplot(df, aes(xmin = xmin, xmax = xmax, ymin = ymin, ymax = ymin)) + geom_rect(fill="grey80") Please help me before I Google again! :-) Thanks. Marsh Feldman [[alternative HTML version deleted]] ______________________________________________ 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.