similar to: drawing arrows with rgl

Dear List, I'm trying to draw vector in XYZ with rgl under use of a cylinder3d. Therefore I scale and rotate a basis-cylinder). However, somehow the rotation is wrong as verified by overplotting arrow3d(). Where is my mistake? library(heplots) library(rgl) # ... 2 vectors data=data.frame(row.names=c('X','Y','Z'), x1=c(2,1,5),y=c(4,3,2))

Hi: I was trying to download the package MCMCglmm and it give me this message: Aviso: dependency ?tensorA? is not available probando la URL 'http://www.vps.fmvz.usp.br/CRAN/bin/windows64/contrib/2.11/MCMCglmm_2.06.zip' Content type 'application/zip' length 8988896 bytes (8.6 Mb) URL abierta downloaded 8.6 Mb package 'MCMCglmm' successfully unpacked and MD5 sums checked my

I've written a fairly elaborate package (called "eoa") that relies on functions from several other packages. I've built the package into a zip file on Windows using Hadley's devtools::build(binary = T) and have sent the zip to a couple dozen people for testing. My package installs fine, but some people are having trouble loading it. After library(eoa), they get something

I've written a fairly elaborate package (called "eoa") that relies on functions from several other packages. I've built the package into a zip file on Windows using Hadley's devtools::build(binary = T) and have sent the zip to a couple dozen people for testing. My package installs fine, but some people are having trouble loading it. After library(eoa), they get something

As some of you will be aware, TeXLive 2009 was released last month having blocked updates on earlier versions since May. This has lead to a flood of updates of LaTeX packages, as a result of which the PDF manuals of R 2.10.0 and earlier will no longer build, for two separate reasons. For MiKTeX users: at least version 2.8 (the current one) has the same updates (a week or so later) and has

Hello, I have been wondering of an efficient way to do this: I have an n x m x p array Z and a p x n matrix Y. I want to multiply each of the n matrices with the corresponding column vector of Y. In other words, I am wanting to matrix multiply: Z[i, ,] %*% Y[, i] which will give me a (two-dimensional) array or matrix of dimension n x p with the i'th row storing the above. Any pointers

I've just released the latest R-Forge versions of heplots 0.9-3 and candisc 0.5-18 to CRAN. They should appear there within a day or two. == heplots The heplots package provides functions for visualizing hypothesis tests in multivariate linear models (MANOVA, multivariate multiple regression, MANCOVA, etc.). They represent sums-of-squares-and-products matrices for linear hypotheses and for

>>>>> Dalthorp, Daniel <ddalthorp at usgs.gov> >>>>> on Thu, 28 Apr 2016 16:41:28 -0700 writes: > I've written a fairly elaborate package (called "eoa") > that relies on functions from several other packages. I've > built the package into a zip file on Windows using > Hadley's devtools::build(binary = T) and

Dear all, I need to compute tensor product of B-spline defined over equi-spaced break-points. I wrote my own program (it works in a 2-dimensional setting) library(splines) # set the break-points Knots = seq(-1,1,length=10) # number of splines M = (length(Knots)-4)^2 # short cut to splineDesign function bspline = function(x) splineDesign(Knots,x,outer.ok = T) # bivariate tensor product of

Hi, I would like to draw arrows in a classic 2D plot. Which package should I use? is there R base functions that do job? On google, I could not find any useful discussion about this topic, except a link to the function 'grid.arrows' of the grid package. My problem is I would like to draw arrows at the edge of circles drawn by the 'symbols' function. Maybe there is already a

Hey, So I have a scatter plot and I am trying to plot a curve to fit the data based on a Holling Type III functional response. My function is this: nll2<-function(a,b) { conefun<-(a*DBH^2)/(b^2+DBH^2) nlls2<-dnbinom(x=cones ,size=DBH, mu=conefun,log=TRUE) -sum(nlls) } and my plot is this: plot (DBH,cones) DBH is on the x-axis and cones is on the y-axis. How do I get the curve

Cran task views seems to be a "once-per-session" process -- the first attempt to access views in a (RGui for Windows) session works, but subsequent attempts fail. There is a noticeably long pause before the failing call returns. Example session with two calls to "available.views" follows, but similar effects have been observed with two calls to "install.views" and

I'm using the command below on an open3d() object to create a shaded cube. Changes to myScalingFactor do not effect changes in the size of the cube. What is the correct approach? Mark shade3d(translate3d(cube3d(identityMatrix() * myScalingFactor),-6,1,-1),col="green", alpha = 0.2) -- Mark W. Kimpel MD ** Neuroinformatics ** Dept. of Psychiatry Indiana University School of Medicine

I've set up a simple tensor with indices 'a' and 'b'. > ftable(B) b u v w x y a a1 0.001868954 0.403345197 0.030088185 0.137252368 0.142634612 a2 0.396935972 0.945219795 0.068828465 0.314180585 0.446338719 a3 0.752412200 0.748810918 0.125532631 0.471686930 0.345062348 a4 0.191103000 0.536607533 0.257740399

Dear R-users: The following code produces two cones in two panels. What I would like to have is to have them in one, and to meet in the origin. Does anyone have any good ideas how to do this? Thanks for your help Jaakko library(lattice) A<-matrix(ncol=2, nrow=64) for(i in 0:63) { A[i+1,1]<-sin(i/10) A[i+1,2]<-cos(i/10) }

Is there an upgrate of the vcd library (visualisation of categorical data) for the latest R version? Trying to download it from CRAN I get URL /data/WWW/ftp/pub/R/bin/windows/contrib/r-release/vcd_0.1-3.4.zip was not found on this server. googling it, I found it for instance on http://www.sourcekeg.co.uk/cran/bin/windows/contrib/1.9/ but trying to install it gave me the message >

Does anyone have a way of producing solid shapes other than spheres in rgl? I am using rgl to produce a simple visualisation of a forest model results using "lollipops". Its just a bit of fun, but as many of the trees are pines I would like to depict their crowns as cones. If there is a solution I need it to work under windows. Here is the example. library(rgl) library(misc3d)

On Fri, 4 Jun 2004, Makc wrote: > Here's what you can find in the net on YUV scheme: Hmm? What prompted this? > The statement I care to make here, is simply that there ain't neither > such thing as "luminance", which details "the eye is more sensitive to", "ain't neither"? Double negative, so I take your statement to mean that there *is* such

Hi, By going through the mailing list archives, I noticed that people use the arrows() command to add error bars to their plots. I think there is a problem when trying to draw arrows of zero length. In the following code, certainly the x driver produces an odd-angled line. In the postscript device, NaNQ values are generated; when the postscript file is viewed in Ghostview, an error is then

Dear r users, I have two kinds of data I'm trying to represent in Rgl. The first are measurements of soils: heights, diameters, and centerpoints of each. I would typically represent these in 3d space as cylinders or cones. The second are radar data of the area under the solids , xyz plus amplitude that I would like to represent as a point cloud. Is there a currently implemented method to