HiIf the ribbon has constant "height" then this can be hacked by drawing a bunch of ribbons (polygons) with different heights and slowly changing colours. If the height of the ribbon varies, then you could use the same approach and clip the result, with a little bit more work. The attached code demonstrates the latter approach (the image files that it produces for me are also attached).
Hope that helps Paul On 11/05/17 08:05, Kristi Glover wrote:
Hi R Users, I was trying to create a figure with geom_ribbon. There is a function "fill", but I want to make the shaded area with a gradient (increasing dark color towards a central line, inserted of having a color). Is there any possibility? In the given example, I want the colour with "blue" but in a gradient (dark=central, light= as goes higher or lower) pl = data.frame(Time = 0:10, menle = rnorm(11)) pl$menlelb = pl$menle -1 pl$menleub = pl$menle +1 ggplot(pl, aes(Time)) + geom_line(aes(y=menle), colour="blue") + geom_ribbon(aes(ymin=menlelb, ymax=menleub), fill="blue") Thanks [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
-- Dr Paul Murrell Department of Statistics The University of Auckland Private Bag 92019 Auckland New Zealand 64 9 3737599 x85392 p...@stat.auckland.ac.nz http://www.stat.auckland.ac.nz/~paul/
gradient.pdf
Description: Adobe PDF document
ggplot.pdf
Description: Adobe PDF document
______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
