R help - Dec 2010 - ggplot2 errorbarh

Hi,

I'm having problems using the 'width' aesthetic attribute for the
geom_errorbarh.   This is the same problem reported earlier here, but I'll
try to write the problem more clearly:

http://www.mail-archive.com/r-help@r-project.org/msg62371.html

The problem I'm having is that, the 'width' attribute is supposed to
set the
height of the endpoints of the whiskers, and respectively, the width of the
endpoints of the whiskers in geom_errorbar.

The width attribute works fine in geom_errorbar (sets width of whiskers
fine), but it has no effect in geom_errorbarh (height of whiskers is the
same no matter what value).  Does anyone else still have this problem?

Also, i'm not looking for the 'size' attribute, which seems to scale
the
line thickness of the entire errorbar.

Thanks!

Brian.

	[[alternative HTML version deleted]]

Brian Tsai <btsai00 <at> gmail.com> writes:
> 
> Hi,
> 
> I'm having problems using the 'width' aesthetic attribute for
the
> geom_errorbarh.   This is the same problem reported earlier here, but
I'll
> try to write the problem more clearly:
> 
> http://www.mail-archive.com/r-help <at> r-project.org/msg62371.html
> 
> The problem I'm having is that, the 'width' attribute is
supposed to set the
> height of the endpoints of the whiskers, and respectively, the width of the
> endpoints of the whiskers in geom_errorbar.
> 
> The width attribute works fine in geom_errorbar (sets width of whiskers
> fine), but it has no effect in geom_errorbarh (height of whiskers is the
> same no matter what value).  Does anyone else still have this problem?
> 
  Looking at the answers in the previous thread, I think the commenters
are trying to answer your question but be missing the point.

  I assume you have horizontal errorbars that look like this

  |------*-------|

and you want them to look like this:

  |              |
  |------*-------|
  |              |

In this case, it would be the "height" aesthetic rather than the
"width" aesthetic that you would want to modify the length of the
end-caps on the bar.

  If this is *not* what you want, it would help if you could somehow
draw a picture of your desired graph (e.g. manipulate the graph you
have in an image editor, or use ASCII art as above) ...