[R] Can we get rid of bar charts with error bars?

[Frank E Harrell Jr]

Bar charts with error bars are far inferior to dot charts and other 
types of displays.  One of many problems is demonstrated if you draw a 
bar chart displaying temperature in F then re-draw it on the degrees C 
scale.  See http://biostat.mc.vanderbilt.edu/DynamitePlots for much more 
information.  The error bars lull us into an assumption that symmetric 
confidence intervals are OK, among other things.

Frank

-- 
Frank E Harrell Jr   Professor and Chair           School of Medicine
                      Department of Biostatistics   Vanderbilt University