[R] Errors on bar plots

From: Fikret Isik <fisik_at_ncsu.edu>
Date: Sat 04 Jun 2005 - 07:10:46 EST


Hi R Gurus,

I am a new R user. I did my home work by reading the manuals and searching the internet for examples but failed to find an example before writing this message for help.

I would like to create bar plots with the standard error of the mean (or 95% confidence intervals) on the bar.

Any suggestions will be appreciated.

Operating system: Windows XP pro
R version 2.1.0

Data look like this:

Site Family Height

1     A         12.3
1     B         13.5
1     C         17.4
2     A         14.0
2     B         11.1
2     C         15.9
.       .          .

Fikret Isik

-- 
Fikret Isik, 
Research Assistant Prof.
 Department of Forestry and Env. Resources
 3010 Biltmore Hall
NC State University,  
 Campus Box 8002, Raleigh, NC 27695
PHONE: 919-515-5029,  
FAX: 919-515-3169
WEB: http://www4.ncsu.edu/~fisik

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Received on Sat Jun 04 04:16:18 2005

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