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Hi, I am trying to extract grobs from a frame. I found out how to place grobs in a frame, but not how to extract them once they are there. Is there an "inverse" function to placeGrob? Thanks, Pedro -- View...

Hi All, I am trying to build a set of plots, and build a common legend to all of them. Because I want to use a multi-line, multi-column legend layout, I cannot use the common ggplot2 legends (if...

Hi All, I am trying to find out how to access the components of a ggplot plot, and I found this reply from Paul Murrel http://www.nabble.com/navigating-ggplot-viewports-tt14826352.html#a15056223. I tried it, and it...

Hi All, I am trying to build a composite plot, with multiple categories, using ggplot2. In principle, it could be done using facetting, but I do not seem to be able to get past the defaults, so I try building...

In the help for scale_fill_identity, it is written ## Not run: colour <- c("red","green","blue","yellow") qplot(1:4, 1:4, fill=colour, geom="tile") qplot(1:4, 1:4, fill=colour, geom="tile") + scale_fill_identity() # To...

Hi Hadley, Thanks for the quick reply. Well, if I could do it directly in ggplot, even better. My data is below (from "dump"). I calculate the bar heights previously, now I just want to plot them, with fixed fill...

Hi All, I have a gTree (x1) produced by ggplot, with the following structure (output from grid.ls, edited): viewport[GRID.VP.15] frame[plot-surrounds] viewport[GRID.VP.16] cellGrob[GRID.cellGrob.137] rect[background] upViewport[1] viewport[GRID...

Hi Hadley, As for now, I have not yet delved deep enough into the new version to be sure if I like it or not. It's just that I like the freedom to choose, and the previous form was...

Hi Paul, Thanks for the tips. I am using ggplot indeed, but I am trying to "drill down", and extract several grobs, most of which are gTrees or frames. Until now, I have more or less managed, but I am...