Start out with

?barplot

Then please tell us what your "issues" are. The barplot function is pretty flexible.

If I guess that you are having difficulty simultaneously plotting one set of stacked bars and another set of non-stacked bars next to them, I would recommend two approaches.

One is to play with

> barplot(first_stuff)
> par(new=TRUE)
> barplot(second_stuff)

The other, and probably better, approach, is to write your data of interest into a new matrix with some zeroes added to certain columns, and use the "beside=FALSE" argument to barplot().


Carl

Sally Roman wrote:

Hi - I would like to make to make a barplot of my data, but am having issues. An example of my data is:

species                     net        pair   pounds    type
Cod                               Control               1       46          kept
Little Skate                      Control               1       0           kept
Summer Flounder           Control               1       9           kept
Windowpane Flounder       Control               1       0           kept
Winter Flounder           Control               1       0           kept
Winter Skate              Control               1       0           kept
Yellowtail Flounder       Control               1       76          kept
Cod                               Experimental  1       19          kept
Little Skate                      Experimental  1       0           kept
Summer Flounder           Experimental  1       2           kept
Windowpane Flounder       Experimental  1       0           kept
Winter Flounder           Experimental  1       0           kept
Winter Skate              Experimental  1       0           kept
Yellowtail Flounder       Experimental  1       9           kept
Cod                               Control               1       14         
discard
Little Skate                      Control               1       75          
discard
Summer Flounder           Control               1       1           discard
Windowpane Flounder       Control               1       32          discard
Winter Flounder           Control               1       16          discard
Winter Skate              Control               1       225         discard
Yellowtail Flounder       Control               1       7           discard
Cod                               Experimental  1       7           discard
Little Skate                      Experimental  1       64          discard
Summer Flounder           Experimental  1       3           discard
Windowpane Flounder       Experimental  1       26          discard
Winter Flounder           Experimental  1       12          discard
Winter Skate              Experimental  1       136         discard
Yellowtail Flounder       Experimental  1       5           discard

I have 9 total pairs. I would like to be able be able to make a barplot by pair that shows the catch of the control net (kept & discard) stacked with the catch of the experimental net also stacked by species like the image below I did in excel.

http://r.789695.n4.nabble.com/file/n3670861/image.jpg

I can make barplots by net and pair, but I would like to have both nets on one barplot if possible.
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