Oh yes, I meant for plotting planes, not points, of course.
Uwe
On 03.10.2015 13:52, Duncan Murdoch wrote:
On 02/10/2015 11:45 PM, Jeff Tostenrude wrote:
Thank you for the suggestion. Yes, it does seem to be a bit
counter-intuitive, but that is the output I am being asked to produce. I
have only been using R for a few weeks, so there is probably a better way
to do it.
Anyway, your suggestion did work, but only up to 337 data points. I am
dealing with ~100,000 data points so this doesn't really work for me. Is
there another method you would suggest? My goal is to plot multiple
regression planes (without points) in an interactive 3d plot.
The problem there would be that 100000 spheres will overwhelm the
graphics system, even if they are of size zero.
The ?planes3d help page shows how to plot a plane based on a linear fit.
It won't include the grid that scatter3d includes; you would need to
program that separately. You should avoid using the rgl.lines and
rgl.quads calls that scatter3d uses; you're better off with lines3d and
quads3d.
If you don't include any points, you'll need to specify the range of the
axes explicitly --- use the xlim, ylim and zlim arguments to decorate3d
to do that.
Duncan Murdoch
Thank you,
Jeff
On Fri, Oct 2, 2015 at 5:22 PM, Fox, John <j...@mcmaster.ca> wrote:
Dear Jeff,
I'm tempted to say that a scatterplot without points is an oxymoron, but
that wouldn't be very helpful.
Actually, the scatter3d() function used by the Rcmdr is in the car
package. The Rcmdr 3D scatterplot dialog doesn't provide for suppressing
the points, but if you add radius=rep(0, n) to the command that's
generated, where you'd replace n with the number of cases in the dataset,
that would do the trick by plotting spheres of 0 radius. For example, try
scatter3d(prestige ~ income + education, data=Duncan,
radius=rep(0, 45), residuals=FALSE)
either in the Rcmdr or at the R command prompt.
For more information see ?scatter3d or press the Help button in the Rcmdr
3D scatterplot dialog and follow the link to scatter3d.
I hope this helps,
John
-----------------------------
John Fox, Professor
McMaster University
Hamilton, Ontario
Canada L8S 4M4
Web: socserv.mcmaster.ca/jfox
-----Original Message-----
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Jeff
Tostenrude
Sent: October 2, 2015 7:34 PM
To: r-help@r-project.org
Subject: [R] scatter3d
I am using scatter3d in R Commander to plot a group of regression
surfaces.
However, I only want to display the surfaces. How do I remove the points?
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
