Manuel,
Thanks, this worked well. I was also toying around with other options in
bargraph.CI per your suggestion.

Thanks,
Michael

bargraph.CI(RecovUnit, bbED, group = year, data =scape234,
+             xlab = "Recovery Unit", ylab = "Edge Density", cex.lab = 1.5,
x.leg = 1,
+             density = c(0,20), legend = TRUE)



On Wed, Oct 8, 2008 at 2:28 PM, Manuel Morales <
Manuel.A.Morales@williams.edu> wrote:

> On Wed, 2008-10-08 at 12:01 -0500, Michael Just wrote:
> > Thank you all for you suggestions. They are all helpful. However, I have
> > come to a more fundamental problem. Preparing my data to even make such a
> > graph. I thought I was ready.  I will obviously need to find the n, mean,
> > and confidence interval for my data before I can plot them. for some of
> > these plots.
> >
> > I thought perhaps this data manipulation would be easily done in R, but
> > perhaps I should do it elsewhere and then bring it into R. I have about
> 5000
> > rows & about 30 columns in my csv. I need to find: mean, n, confidence
> > interval for a to-be-made selection from the entire data set.
> >
> > I have tried: aggregate, subset, dat$col1=2, etc
> >
> > Clearer?: I want to select data from my dataset where column1=2. Then
> when
> > plotting this data I want to group it by 2 values (out of 4) from
> column10.
>
> Actually, the functions in sciplot will do this for you. All you need is
> to specify a response column, the column indicating the x-axis, the
> dataframe, and the subset of interest.
>
> E.g.:
>
> bargraph.CI(response=whatever.column.has.the.response, x.factor=col10,
> data=data, subset=col2==2)
>
> The default is to plot the mean +/- 1SE but this can be changed as
> needed.
>
> HTH,
>
> Manuel
>
> > I know this is probably as clear as mud, thanks for you continuing
> patience.
> > I would really appreciate any assistance you are able to provide me. My
> > limited knowledge in R grows quite rapdily and things become so much more
> > successful for me when I am granted tips and snippets of code form R
> users
> > like you.
> >
> > Sincerely,
> > Michael Just
> >
> > On Wed, Oct 8, 2008 at 11:25 AM, hadley wickham <h.wickham@gmail.com>
> wrote:
> >
> > > On Tue, Oct 7, 2008 at 11:31 PM, Michael Just <mgjust@gmail.com>
> wrote:
> > > > Hello,
> > > > I'd appreciate a suggestion on how to construct plots (barplots?)
> that
> > > use
> > > > means on the Y axis instead of density/count. I'd also like to use
> groups
> > > > and plot error or confidence interval bars on these graphs. I know
> this
> > > is a
> > > > read the manual situation. I'd appreciate help with what to read, or
> your
> > > > benevolence with some sample code.
> > >
> > > Here's an alternative suggestion - don't use bars, use dots.  Bar
> > > plots with standard errors are sometime called dynamite plots
> > > (probably because they should be blown up).  See
> > > http://biostat.mc.vanderbilt.edu/twiki/bin/view/Main/DynamitePlots and
> > > http://emdbolker.wikidot.com/blog:dynamite for some reasons not to use
> > > them and possible alternatives.
> > >
> > > I hope that package authors who provide methods to make these plots
> > > easy will reconsider.
> > >
> > > Hadley
> > >
> > > --
> > > http://had.co.nz/
> > >
> >
> >       [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> --
> http://mutualism.williams.edu
>

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