Displaying 20 results from an estimated 10000 matches similar to: "Two questions about cloud()."
2004 May 07
1
plotting planes and lines in wireframe()
Hi R-helpers
I would like to plot some planes which are perpendicular to the x-y
plane, such as x=y. Is there a way to do this in wireframe? I realize
that I am not plotting a function of x, y since there are infinite
number of z's that satisfy the above relation.... Hmm...
Somewhat related, I would also like to plot a line in 3 d space...
Finally, if you are feeling really brave, I
2012 Feb 09
2
Lattice 3d coordinate transformation
Hello List!
I asked this before (with no solution), but maybe this time... I'm
trying to project a surface to the XY under a 3d cloud using lattice.
I can project contour lines following the code for fig 13.7 in
Deepayan Sarkar's "Lattice, Multivariate Data Visualization with R",
but it fails when I try to "color them in" using panel.levelplot.
?utilities.3d says there
2005 Nov 18
2
Adding points to wireframe
Hi,
I am using function wireframe from package lattice to draw a 3D surface.
I would like to add a few points on the surface. I read in a post from
Deepayan Sarkar that "To do this in a wireframe plot you would probably
use the panel function panel.3dscatter". Does someone have an example?
When calling panel.3dscatter with only x, y and z arguments I get
"argument
2011 Mar 04
1
lattice: wireframe "eats up" points; how to make points on wireframe visible?
Dear expeRts,
I would like to add two points to a wireframe plot. The points have (x,y,z) coordinates
where z is determined to be on the wireframe [same z-value]. Now something strange
happens. One point is perfectly plotted, the other isn't shown at all. It only
appears if I move it upwards in z-direction by adding a positive number. So somehow
it disappears in the wireframe-surface
2004 Jan 30
1
lines in 3d-cloud plot (lattice)
Hi all,
I'd like to plot a set of data (x,y,z) as 3D-cloud, and add several line
plots to the same 3D graph:
Two questions:
1) How do I connect points to get a line?
> cloud(z~x*y,data=d,zlim=c(0,1)) # works
> cloud(z~x*predict(l),data=d,zlim=c(0,1),type="l") # type="l" doesn't
Warning message:
type = l not implemented, consider using
2011 Oct 24
1
Adding points to a wireframe: 'x and units must have length >0' error
Hi,
I'm trying to follow the suggestions given by Deepayan Sarkar in this
message:
http://tolstoy.newcastle.edu.au/R/help/05/11/16135.html
to plot 3-D points on a wireframe plot. The problem is that I keep getting a
partly formed plot- with the colored lattice visible but no axis labels or
additional points- with the error message "error using packet 1, 'x' and
'units'
2012 Feb 05
0
Lattice: correct use of ltransform3dto3d to plot a surface under a cloud ?
Hello list!
I am trying to project the fitted surface to a 3d plot of the data,
similar to figures 13.7 or 6.5 in Deepayan Sarkar's "Lattice,
Multivariate Data Visualization with R", but replace the contour/map
lines with "levelplot". Problem is I can't get the color regions to
line up after the coordinate transformation. Is there a simple
solution my geometry
2002 Aug 12
1
question about cloud() in lattice package
Hi all,
I have been previously been using scatterplot3d package to create some graphs but unfortunately it does not allow me to rotate the
plot on all three axis. The cloud() function in the lattice package does allow me to do so. When I was using scatterplot3d I was
using a script (Shown Below) to calculate the mean, quartiles and range limits for all three axis and I was representing that on the
2008 Apr 30
2
wireframe - add data points
Hello all,
I’m trying to add some data points to a wireframe. X an Y axis are independent variables, Z axis is predicted probability. I’d like to add the original data points on which the predicted probabilities are based to the wireframe. I’ve followed some of the previous post on this but get stuck :
## first part yields the wireframe##
setwd("C:/Temp")
rnp <-
2008 Apr 22
2
cloud plot has white(transparent?) background
I am using the code example from the R graph gallery to look at a
cloud plot:
require(lattice)
data(iris)
print(cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris,
groups = Species, screen = list(z = 20, x = -70),
perspective = FALSE,
key = list(title = "Iris Data", x = .15, y=.85, corner = c(0,1),
border = TRUE,
2009 Feb 27
3
question about 3-d plot
Hi R Users,
I have produced a simulated scatter plot of y versus x tightly clustered
around the 45 degree line through the origin with the following code:
x <- seq(1,100)
y <- x+rnorm(100,0,10)
plot(x,y,col="blue")
abline(0,1)
Is there some way to generate a 3-dimensional analogue of this? Can I get a
similar simulated scatter plot of points in 3 dimensions where the points
2003 Nov 21
3
plot map of areas
Hi all,
Given a number of points (x,y) in a plane, I'd like to plot a map of
polygons, so that
1) each polygon contains exactly one point
2) the polygon defines the area for which this specific point is
closer than any other point.
It's a bit like a map of areas "influenced" by that point, and it's
obviously a matter of intersecting the perpendicular bisectors
2009 Jul 03
2
Two questions about the cloud function in the lattice package
Hi,
I have two questions regarding the cloud function in the lattice
package:
1) Is there a way to not print the surrounding frame (i.e. the square
surrounding the entire plot)?
2) Is there a way to italicize the text displayed with the key argument?
Some sample code:
data(iris)
cloud(Sepal.Length~Petal.Length*Petal.Width,data=iris,
groups=Species,screen=list(z=20,x=-70),
2004 Sep 01
1
Tick marks in cloud (lattice)
Hi! Probably a simple question, but I can't get any tick marks in the 3d
scatterplot I created using the cloud function.
The following works to display the three groups using different symbols:
data(iris)
cloud(Sepal.Length ~ Petal.Length * Petal.Width, data = iris, cex = 1.2,
groups = Species, pch = c(16,1,1), col = c("black","black","red"),
subpanel =
2004 Jan 15
5
Lattices: Cloud: Background
Hi,
There's probably some simple way of doing this, but I'm just not seeing
it - How do I get the background to be white instead of grey when I have
a cloud plot (using the lattices package)? par(bg="white") isn't
working. I'm assuming par commands won't work on lattice plots. What
should I use instead?
Thanks,
Adrienne
[[alternative HTML version deleted]]
2003 Jan 15
1
lattice: cloud: aspect ratio, labels, vertical lines
I am interested to know how to make for clouds:
- aspect ratio = 1
- labels attached to points
- vertical lines from the points to the x/y base plane
I tried:
t = c( 'A', 'B', 'C', 'D' )
x = c( 100, 0, 200, 100 )
y = c( 0, 100, 0, 100 )
z = c( 80, 0, 20, 40 )
q = data.frame( x, y, z )
rownames( q ) = t
print(cloud( z ~ x *
2009 Aug 18
1
three dimensions barchart
Dear R community,
I have one problem with figures.
I draw the Relative Distribution graph,
it looks like barchart(X,Y plot),
but I have ten(year) Relative Distribution grapgs,
have any command am can combine ten barcharts(X,Y plot) to become a three
dimensions barchart(X,Y,Z plot)?
All help highly appreciated
Best,
Yichih
One Relative Distribution graph:
2002 Mar 18
2
persp(): add second plane (second, long question)
Thank you for your replies so far.
Sorry for bothering you again, but I'm still not able to get what I need as
I don't understand all parts of the replies (just using R for easy
things....).
Is there a code for plane3d() like some of you sent me for points3d()? I was
not able to get that out of the scatterplot3d package...
What I can do is to get the x,y and z-range for the xlim,ylim and
2007 Jul 05
2
Adding points to a wireframe with conditioning variable
I would like to add points to a wireframe but with a conditioning variable. I
found a solution for this without a conditioning variable here,
http://finzi.psych.upenn.edu/R/Rhelp02a/archive/65321.html. Does anyone know
how to plot a wireframe conditioned on a variable and add the points
conditioned on the same variable, similar to the solution at the link above?
2010 Feb 20
1
Add lines (contours) to lattice wireframe plot
Hi,
I draw a surface corresponding to bivariate density of independent
variables (rho=0) using persp(). Then I add a contour line (i.e.,
circle in my case) at a particular density. Below is a minimal example
of what I have so far.
# Bivariate density
dnorm2d <- function(x, y, rho = 0) {
xoy = (x^2 - 2 * rho * x * y + y^2)/(2 * (1 - rho^2))
density = exp(-xoy)/(2 * pi * sqrt(1 - rho^2))