Re: [R] Question about ggplot2 and stat_smooth
Dennis Murphy
I would think that, at least in principle, this should work:
a <- ggplot(mtcars, aes(qsec, wt))
a + geom_point() + stat_smooth(fill="blue", colour="darkblue", size=2,
level = 0.9, alpha = 0.2) +
stat_smooth(fill = 'blue', colour = 'darkblue', size = 2,
level = 0.5, alpha = 0.4)
but geom_smooth() doesn't seem to react to different values of level.
I get the same bands on geom_smooth() if I use level = 0.95, 0.75 or
0.5. Since I make it a policy not to invoke the B word, I'll let
others who know more about the code comment on it.
BTW, ggplot2 related questions tend to get faster responses on its
list: ggp...@googlegroups.com. I've taken the liberty of forwarding
there since most of the developers read that list more regularly than
R-help.
Dennis
On Mon, Oct 3, 2011 at 10:24 AM, Thomas Adams <Thomas...@noaa.gov> wrote:
> 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...@noaa.gov
>
> VOICE: 937-383-0528
> FAX: 937-383-0033
>
> ______________________________________________
> R-h...@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.
>
Adam_L...@keybank.com
Don't want to confuse the issue, but want to let you know the code below produced for me different sized bands, whether I use, "stat_smooth," or, "geom_smooth."
Adam Loveland
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Dennis Murphy
to work on at least some systems, but not on mine. To that end...
> sessionInfo()
R version 2.13.1 (2011-07-08)
Platform: x86_64-pc-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] grid stats graphics grDevices utils datasets methods
[8] base
other attached packages:
[1] gridExtra_0.8 ggplot2_0.8.9 proto_0.3-9.2 reshape_0.8.4 plyr_1.6
loaded via a namespace (and not attached):
[1] tools_2.13.1
I also tried it in the unstable version 2.14.0 on the same platform with no joy.
Dennis