[R] Question about ggplot2 and stat_smooth

[Thomas Adams]

  I'm interested in creating a graphic -like- this:

c <- ggplot(mtcars, aes(qsec, wt))
c + geom_point() + stat_smooth(fill="blue", colour="darkblue", size=2, 
alpha = 0.2)

but I need to show 2 sets of bands (with different shading) using 5%, 
25%, 75%, 95% limits that I specify and where the heavy blue line is the 
median. I don't understand how to do this with ggplot2. What I am doing 
currently is to generate 'boxplots' (with 5%, 25%, 75%, 95% limits) at 
6-hourly time steps (so I have a series of boxplots, which you can see 
by clicking on a map point: 
http://www.erh.noaa.gov/mmefs/index_test.php?Lat=38.2&Lon=-80.1&Zoom=5&Refresh=0&RFCOverlay=0&Model=NAEFS). 
Some who use our graphics would like to see something more like the 
ggplot2 with stat_smooth graphic.

Help is much appreciated.

Regards,
Tom

-- 
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177

EMAIL:	thomas.adams at noaa.gov

VOICE:	937-383-0528
FAX:	937-383-0033