error bars on xy plots and barplots and histograms

Chris,

computation of confidence intervals is left to the user.  Showing them
can be achieved using the arrows() function.

I hope that this helps,

Andrew
Also do ?xYplot after installing the Hmisc package. -Frank
On Thu, Oct 06, 2005 at 08:19:27AM -0600, Chris Buddenhagen wrote:

Dear all

I have yet to find code for making and showing error bars. Is there some
idea that the simple presentation of confidence intervals is not " good
statistics"?

Any leads appreciated.

Chris Buddenhagen, Botany Department, Charles Darwin Research Station, Santa
Cruz,Galapagos. Mail: Charles Darwin Foundation, Casilla 17-01-3891 Avenida
6 de Diciembre N36-109 y Pasaje California Quito, ECUADOR

______________________________________________________________________
EL CONTENIDO DE ESTE MENSAJE ES DE ABSOLUTA RESPONSABILIDAD DEL AUTOR.
FUNDACION CHARLES DARWIN
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Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University

error bars on xy plots and barplots and histograms

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