[R] adding SE to bar plots

[Bill Shipley]

Hello.  I know that one can add standard errors to a bar plot by repeated 
use of the lines() function, but this can be long when there are many 
bars.  I wonder if there is not already some other function that does this 
automatically?

Bill Shipley
Departement de biologie
Universite de Sherbrooke
Sherbrooke (Quebec) CANADA J1K 2R9
Bill.Shipley at USherbrooke.ca
http://callisto.si.usherb.ca:8080/bshipley/

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