[R] How to add error bars to plot(x,y)in R?

[Richard Rowe]

At 10:29 25/01/02 +0100, you wrote:

>On Thu, 24 Jan 2002, Dirk Eddelbuettel wrote:
>
> >
> >   "Ming" == mingliz2  <mingliz2 at netscape.net> writes:
> >   Ming>  Dear R Experts, Is there a way in R to add an error bar (say 
> in the
> >   Ming> y direction) for each data point?
> >
> > This is a FAQ. Here is but one reply from the mailing list.
> >.../...
> >
> >      This comes up as a FAQ every so often (it hasn't yet been added to the
> >    official FAQ list), you can find it in the mail archives in several
> >    places.
>
>
>The real solution would be adding this feature as an option
>to plot.

Respectfully I disagree as the conventions for 'error bars' differ in 
different branches of science and engineering.  Users are often/generally 
oblivious to the other conventions and will presume their preference is 
being implemented. Perhaps adding a 'script' directory to plot and 
incorporating the straightforward plotting function there might be a way to 
go, in this way users have to understand and to insert their own desired 
'confidence interval',


Richard Rowe
Senior Lecturer
Department of Zoology and Tropical Ecology, James Cook University
Townsville, Queensland 4811, Australia
fax (61)7 47 25 1570
phone (61)7 47 81 4851
e-mail: Richard.Rowe at jcu.edu.au
http://www.jcu.edu.au/school/tbiol/zoology/homepage.html

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