[R] barchart but with boxes

From: Daisy Englert Duursma <daisy.duursma_at_gmail.com>
Date: Mon, 07 Jun 2010 16:53:36 +1000

Hello r-help.

I have been working on making a graph and have several solutions but they are tedious at best.

Here is an example dataset:


max <-(c(10,6,8,6,7,3,10,9,10,8,9))

What I want to create is a basically a bar chart, but I define the min (min) and max (max) for the bars.
These bars are separated into three categories (catg). Within each category the bars are allowed to overlap. I set the bars to have a transparent color so that I can see agreement of the items within a category based on the darkness of color.

One method I came up with, is to use ggplot2 and geom_tile but then I have to give x,y coordinates for every corner of every box. Considering the size of my real datasets, and not this little example dataset, this seems annoying.

I could even just graph lines with the defined min and max. With that I could make the lines thick and achieve the effect I am looking for.

Hopefully I have missed an obvious method to graph this.


Daisy Englert Duursma

Room E8C156
Dept. Biological Sciences
Macquarie University  NSW  2109

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Received on Mon 07 Jun 2010 - 06:56:07 GMT

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