On 31.07.2012 21:14, Duncan Murdoch wrote:
On 12-07-31 2:54 PM, Andras Farkas wrote:
Dear All,
using the example from the package scatterplot3d I created a 3d plot
as follows:
x <-rnorm(500,50,2)
y <-rnorm(500,5,1)
z <-rnorm(500,6,1)
scatterplot3d(x, y, z, highlight.3d=TRUE,
col.axis="blue",col.grid="lightblue", main="scatterplot3d - 1", pch=20)
I would like to ask if anyone could help me with the following:
1. I would like to draw a plane across the plot that is paralell to
the bottom of the plot and is in the heights of the value 6 on the
axis "z", and goes across the plot
This is hard to do in scatterplot3d, because some points should be
hidden and others shown in front of such a plane, but scatterplot3d has
no way to do that.
No, but the human brain may help to make it not too hard a task:
s3d <- scatterplot3d(x[z<6], y[z<6], z[z<6], zlim=range(z),
color="darkgrey", col.axis="blue",col.grid="lightblue",
main="scatterplot3d - 1", pch=20)
s3d$plane3d(6, 0, 0)
s3d$points3d(x[z>=6], y[z>=6], z[z>=6], pch=20)
Best,
Uwe ligges
You could do it using the rgl package; the commands
there would be something like this (without the coloring you did in
scatterplot3d):
plot3d(x,y,z)
planes3d(0,0,-1,6,col="red")
2. Is there a way to color all plotted values with the "z" variate
less than the value of 6 one color, and all the rest another color?
In rgl you would do it using
plot3d(x,y,z, col=ifelse(z < 6, "blue", "red"))
I think the same sort of thing works in scatterplot3d, but the arg name
is color, not col.
Duncan Murdoch
I would greatly apreciate the help on this,
Sincerely,
Andras
[[alternative HTML version deleted]]
______________________________________________
R-help@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.
______________________________________________
R-help@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.
______________________________________________
R-help@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.
