R help - Feb 2007 - plotting derived values not raw

I am trying to plot the mean and standard error of three separate
conditions.  For various reasons, I do not have access to the raw data from
which the mean and error were derived and would like to make error bar plots
utilizing only the actual mean and standard error values.  Is there a way to
do this in R?  Thanks for any help in advance.
james

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James Root <jcroot <at> gmail.com> writes:
> 
> I am trying to plot the mean and standard error of three separate
> conditions.  For various reasons, I do not have access to the raw data from
> which the mean and error were derived and would like to make error bar
plots
> utilizing only the actual mean and standard error values.  Is there a way
to
> do this in R?  Thanks for any help in advance.
> james
I believe that xYplot in the Hmisc package will do what you want

Mark Lyman

James Root wrote:
> I am trying to plot the mean and standard error of three separate
> conditions.  For various reasons, I do not have access to the raw data from
> which the mean and error were derived and would like to make error bar
plots
> utilizing only the actual mean and standard error values.  Is there a way
to
> do this in R?  Thanks for any help in advance.
RSiteSearch("error bars", restrict="function") points to
several
packages that will plot errors bars or confidence intervals only from
the summary information.  For example:

library(sfsmisc)

mymeans <- rnorm(10)

myerrors <- 1 + .1*rnorm(10)

errbar(1:10, mymeans, mymeans + myerrors, mymeans - myerrors,
main="Error Bars example")
> james
> 
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> 
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