confidence-intervals in dotchart
On Tue, 10 Feb 2004 04:30:46 EST
TyagiAnupam at aol.com wrote:
My earlier posting should have said "dotchart", not "barchart". 1) How does one show confidence-intervals in a "dotchart" and use rownames for labels on the y-axes? I have looked at "plotCI" in "gregmisc" package . But it does not seem to produce something like a dotchart. The statistic, error, upper-bound, and lower-bound are in a dataframe. 2) How to show CI in a dotchart either using the statistic and, either (a) errors or (b) upper and lower bounds from a dataframe? An example will be very helpful.
You might look at the example on p.149 http://cran.r-project.org/doc/contrib/Harrell-statcomp-notes.pdf and other examples in that section. These use the xYplot and Dotplot functions in the Hmisc package, which extend lattice graphics to easily handle error bars and bands. --- Frank E Harrell Jr Professor and Chair School of Medicine Department of Biostatistics Vanderbilt University