[R] Plot Means Line with Standard Deviation as "Whiskers"

Peter Alspach PAlspach at hortresearch.co.nz
Mon Mar 23 23:54:59 CET 2009

Tena koe Rodrigo

You could always make up some data and then show us what you have tried to do.  I would guess you need to check out:

plot # to do the basic plot
lines # to add lines to the plot
points # to add points to the plot
arrows # can be used to give the whiskers
apply # to get the means and standard deviations

HTH ....

Peter Alspach

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Rodrigo Aluizio
> Sent: Tuesday, 24 March 2009 11:44 a.m.
> To: R Help
> Subject: [R] Plot Means Line with Standard Deviation as "Whiskers"
> Hi list members.
> I'll try to plot the abundance means of nine transects as 
> lines, with five points on each transect (A to I). I will 
> also need to plot for each point, it's standard deviation 
> (once each point will have tree replicates) as whiskers. 
> Another problem will be that all the points should exist for 
> each transect, but we know that six of the nine transects 
> will have blanks (A1, A2, A3, -, A5). So the line have to be 
> interrupted and can't induce an inexistent value by link A3 
> to A5 (an example).
> Well, unfortunately I still don't have the data, I'm just 
> anticipating a future situation, and I can't find any clear 
> suggestion by "googling" the issue, and I guess the help 
> files may have something but I was unable to find by myself.
> Thanks in advance. Any help will be appreciated.
> -------------------------------------------------------------
> MSc.  <mailto:r.aluizio at gmail.com> Rodrigo Aluizio
> Centro de Estudos do Mar/UFPR
> Laboratório de Micropaleontologia
> Avenida Beira Mar s/n - CEP 83255-000
> Pontal do Paraná - PR - Brasil
> Fone: (0**41) 3455-3620 ramal 217
> Fax: (0**41) 3455-3623
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