similar to: Diffusion of particles inside a sphere

Dear All, I need to do something simple: I have a set of points which are located on the surface of a sphere (let's say the centre of the sphere is in (0,0,0) and the sphere has radius R=1). How can I visualize them? I am looking for something like this http://bit.ly/PnSerU with the addition of some spots that represent some points I want to plot on the sphere surface. Any suggestion

Dear R list I am using rgl.sphere to visualize scatter plot data in three dimensional space. Thanks to the rgl library, I can easily find out the data point that I am interested in. However, as I can not see the labels of each data point directly in RGL window, I usually look for the values of x, y, z axis to find out the label (or line number of the data point). Is there any way that I

Dear All, I need to plot some points on the surface of a sphere, but I am not sure about how to proceed to achieve this in R (or if it is suitable for this at all). In any case, I am not looking for really fancy visualizations; for instance you can consider the images between formulae 5 and 6 at http://bit.ly/hOgK9h Any suggestion is appreciated. Cheers Lorenzo

Dear All, I implemented an algorithm for (uniform) random rotations. In order to test it, I can apply it to a unit vector (0,0,1) in Cartesian coordinates. The result is supposed to be a set of random, uniformly distributed, points on a sphere (not the point of the algorithm, but a way to test it). This is what the points look like when I plot them, but other then eyeballing them, can anyone

Not an R question directly, but has anyone got a method for placing a moderately large number of (near) equi-spaced points on a sphere? I have a nasty feeling platonic solids are needed for exact solutions and I'm thinking of samplings involving around 200 - 1000 regularly-spaced points, Thanks, Richard Rowe Richard Rowe Senior Lecturer Department of Zoology and Tropical Ecology, James

Hi, I'm new to R (and math ;) Would somebody please be so kind as to direct me in plotting a 3D sphere? I tried something in the lines of: #### y <- x <- seq(-pi, pi, length=pi*10) f <- function(x,y) { z <- sqrt(pi - x^2 - y^2) #z[is.na(z)] <- 0 z } z <- outer(x, y, f) persp(x, y, z, theta = 120, phi = 30) #### I've also tried: .... make.surface.grid(...) ..

I have spatial data on a sphere (the Earth) for which I would like to run an gls model assuming that the errors are autcorrelated, i.e. including a corSpatial correlation in the model specification. In this case the distance metric should be calculated on the sphere, therefore metric = "euclidean" in (for example) corSpher would be incorrect. I would be grateful for help on how to

There's Renka's STRIPACK, and TRIPACK, respectively, ACM TOMS Algorithms 772 and 751, and there's the R package "deldir" which does the Delaunay for a plane, but does anyone have or know of the tessellation in R for a sphere? Also, is there a standard indexing scheme for Delaunay facets, and perhaps of edges in such facets? I'd expect that to be a publication reference,

Hello veryone, I have a strange problem. I have an asterisk (latest from CVS) with latest oh323 channel driver. I place calls with DIAX. The H323 gateways only support G711A De DIAX only supports GSM When I perform an inbound call: H323 -> asterisk -> DIAX :: sound is ok. When I perform an outbound call: DIAX -> Asterisk -> h323 :: sound is terrible and CPU load is 80% When I

Dear colleagues, I would need to add text (some rows of information) in a matrix. For example, given this matrix 1 2 3 4 5 6 7 8 9 I would need to add this info: THIS IS AN EXAMPLE OF a 3x3 MATRIX 1 2 3 4 5 6 7 8 9 I have been looking for a function that works similar to "fopen" in matlab, but unfortunately I have not found It in R. Thank you in advance for your help! Carlos

Dear R Users, Does anyone know of a package which can generate random realisations of a double-exponential jump diffusion process with a drift ? Something where I can specify the likelihoods of an up or a down jump, the drift rate, and the mean size, and get back a vector of realisation of the process (for purposes of a Monte-Carlo). Kind regards, Tolga

I just got a Diffusion notification about a change of mine being reverted by Fangrui, but I'm not sure that's actually what happened and am confused and concerned. My commit was "[DebugInfo] Allow spill slots in call site parameter descriptions", and it appears in the history under two hashes: 1ee84e and 67c416. The first commit contains the actual change. The second touches

~3 hours ago, I got a big pile of emails from Phab that I had been expecting over the last 3 days, so I think that means it's working now. :) On Mon, Sep 25, 2017 at 9:32 AM, Reid Kleckner <rnk at google.com> wrote: > Looks fixed now? Something is leaking files in /tmp on the VM, leading to > mysql disk full errors. I deleted files in /tmp, but of course this is a > temporary

Looks fixed now? Something is leaking files in /tmp on the VM, leading to mysql disk full errors. I deleted files in /tmp, but of course this is a temporary fix. Eventually it will fill up again. =/ On Sat, Sep 23, 2017 at 7:18 AM, Sanjay Patel via llvm-dev < llvm-dev at lists.llvm.org> wrote: > This was in the email I got for r314024 before things went dark: > > STDERR > svn:

Galera I go direct to the subject. I negotiate it I am the following one, I costumava to play a certain called MMORPG Sphere ( http://www.spherebr.com.br/ or http://www.uox.com.br/ ). It happens that I installed the game for the Wine without no problem and until the window of loguin of the game it appears equal in windows. But in the hour of logar my account, it appears Connecting

Dear List, I don't get scatter3d to color the sheres according to the '|' argument. library(car) scatter3d(prestige ~ income + education|type, data=Prestige) The spheres on my screen are all colored the same and they are not conditional on Prestige$type. On the other hand: Fit3d and Ellipse3d are colored according to the group argument. rgl_0.92.879 car_2.0-12 R version 2.15.0

Sincerely, Jeffrey Todd Lins Executive Director Quantitative Analysis Saxo Bank A/S (Sent from my BlackBerry) ----- Original Message ----- From: r-sig-finance-bounces at stat.math.ethz.ch <r-sig-finance-bounces at stat.math.ethz.ch> To: r-help <R-help at stat.math.ethz.ch>; r-sig-finance at stat.math.ethz.ch <r-sig-finance at stat.math.ethz.ch> Sent: Wed Apr 02 06:49:54 2008

Dear All, I hope I am not asking a FAQ. I am dealing with a problem of graph theory [connected components in a non-directed graph] and I do not want to rediscover the wheel. I saw a large number of R packages dealing for instance with the k-means method or hierarchical clustering for spatially distributed data and I am basically facing a similar problem. I am given a set of data which are the

Bonjour, j'ai l'honneur de vous informer que je postule ? la liste de diffusion pour des fins utiles de cette formation "MOOC". Salutations ? toute l'?quipe d'encadrement. Cordialement. -- *DOUMBOUYA Moussa* *Epid?miologiste bio statisticien* ************************** Certifi? en FETP premi?re ligne en Guin?e *Chef de section pr?vention et lutte contre la maladie*

Hello I administrate a samba server with two network cards. This server is visible and serve his shares succesfully on two differents subnets. Ports 137,138 & 139 (both tcp & upd) are filtered between those two subnets by cisco switches. The problem is that all my computers on the first subnet are visible from the second subnet in the network neigbourhood. Only their names are