similar to: Can I add a point to a pointsGrob from an xyplot without redrawing ?

Hello, I'm trying to determine the width of a plotting point (in inches) in the grid package. I naively thought I could create a pointsGrob with only one point and get the width (as tried below), but this results in an object with a size of 0inches (changing cex has no effect). Does anyone have a better approach? Of course, it would be dependent upon the graphics parameters and viewport...

Hi, If I may suggest that something be done to the window drawing function of a plot. As it is now, we don't even have time to resize the window by a tiny bit before it's invoke and I think it would be an improvement if while the mouse is down the redrawing was delayed somehow. This is especially true when the plot is crowded. I also observed that moving the plot window around was a lot

Dear list, This might be a topic for r-devel but i may be missing something obvious. I don't understand the rationale in the absolute sizes of the point symbols, and I couldn't find it documented. The example below uses Grid to check the size of the symbols against a square of 10mm x 10mm. > checkOneSymbol <- function(pch=0){ > gTree(children=gList( >

Dear list, This might be a topic for r-devel but i may be missing something obvious. I don't understand the rationale in the absolute sizes of the point symbols, and I couldn't find it documented. The example below uses Grid to check the size of the symbols against a square of 10mm x 10mm. > checkOneSymbol <- function(pch=0){ > gTree(children=gList( >

Dear r-help, Now I am drawing graphs with xyplot function. In order to place a legend under the plots I use the key argument in the xyplot function. One of the 'key' components is 'divide', which defines a number of points on the each line of the legend. The default is 3 points. I would like a single point, so I set divide = 1. Call to xyplot didn't produce

Why does the seekViewport at the bottom give an error? > xyplot(Sepal.Length ~ Sepal.Width, iris, group = Species, col = 11:13, + auto.key = TRUE) > grid.ls(view = TRUE) ROOT GRID.rect.89 plot1.toplevel.vp plot1.xlab.vp plot1.xlab 1 plot1.ylab.vp plot1.ylab 1 plot1.strip.1.1.off.vp GRID.segments.90 1 plot1.strip.left.1.1.off.vp

Dear all, let consider the following function: Fun1 <- function() { library(lattice) plot1 <- 1:10~1:10 pl1 <- xyplot(plot1) return(pl1$call$x) } In R 2.5.0 (or older version) we have > Fun1() plot1 but starting from R 2.5.1 until the latest R 2.8.0 we obtain instead > Fun1() NULL because pl1$call seems to be equal to xyplot() without arguments. Something like

Hi, this is not a new doubt, but is a doubt that I cant find a good response. Look this output: > m.lme <- lme(Yvar~Xvar,random=~1|Plot1/Plot2/Plot3) > anova(m.lme) numDF denDF F-value p-value (Intercept) 1 860 210.2457 <.0001 Xvar 1 2 1.2352 0.3821 > summary(m.lme) Linear mixed-effects model fit by REML Data: NULL AIC BIC

Hi. As far as I understand it, there is a list of graphic primitives stored for a device. So for example, when I iconify/deiconify an X11 window, the plot will be redrawn. Now screen (split.screen and friends) appear not to handle this list properly, the list is reset or not reset at odd times. The commands below will show clearly what I mean. There are two effects: - After splitting the

Hi, One thing that has always puzzled me using R, via Emacs/ESS on Debian, is how the graphics windows get (or don't get) redrawn. At the moment I've got four different X11() windows open, arranged to all fit on the screen at the same time. However, I have no idea how to get them all redrawn consistently. What I mean is, if I now switch focus from my main Emacs window to one of the

Hi, I'm embedding R in an application under Debian Linux. I need to plot some graphicals using R, but they don't redraw. My program uses qt graphical library. I read in "Embedding R in Other Applications" that "... R should be able to export the file descriptors on witch it is waiting for events and also the callbacks...," but this document don't tell how to

> Hi, > > I have been using syslinux on my portable disk with success on many > types of machines (both bios boot and EFI boot) > > I however hit a small issue recently > > If I use menu.c32, on some UEFI systems (HP) the menu does not appear > after the vendor splash screen. The system however goes ahead and > after the timeout configured in the menu system

For the first error message: > win.metafile(file = "//.../plot1.wmf", + width = 8.5, height = 6.25) > lset( list( background = list(col = "white"))) Error in get(x, envir, mode, inherits) : variable "win.metafile://.../plot1.wmf" was not found > traceback() 4: get(device) 3: trellis.device(device = .Device, new = FALSE) 2: trellis.par.get(item) 1:

Forgot to send to the list. Begin forwarded message: > From: Saptarshi Guha <saptarshi.guha@gmail.com> > Date: September 19, 2008 1:43:50 PM GMT-04:00 > To: Gabor Grothendieck <ggrothendieck@gmail.com> > Subject: Re: [R] Lines between panels in lattice > > Certainly. > > x=cbind(runif(10),rnorm(10),c(rep(1,5),rep(2,5))) >

Hi, I am currently developing a xsnow like plugin for beryl called xglsnow (http://cornergraf.net/projects/xglsnow/). I have been told(1) that my way of drawing to the desktop is not very good and that a better way might exist. I realize beryl is not the same as compiz, but I hope that the differences are not too big on this matter, if not excuse me for this post. My drawing currently works

Hello, I am working on a project analysing the performance of motor-vehicles through messages logged over a CAN bus. I am using R 2.12 on Windows XP and 7 I am currently plotting the data in R, overlaying 5 or more plots of data, logged at 1kHz, (using plot.ts() and par(new = TRUE)). The aim is to be able to pan, zoom in and out and get values from the plotted graph using a custom Qt

Hi, I'm running Lenny with Fluxbox, interacting with R via Emacs + ESS. An ongoing aggravation with this setup is trying to get R graphics windows redrawn. For example, I may have 8 or 10 R graphics windows open, and I switch between them using Alt-tab. The problem is, sometimes the windows remain blank. Sometimes I can get the display back by moving the window with the mouse, or switching

Hello, I have a multi-page display each consisting of two-panels above each other. I need to draw a line from the top panel to bottom panel. Using current.vpTree() i find that "plot1.panel.1.2.vp" and "plot1.panel.1.1.vp" are the top and bottom ones respectively. I am using the following code(inspired by Paul Murrell's R Graphics) to draw a line. (All the

Hi, I just installed R and am comparing it to other packages (such as Igor). So, you'll have to excuse me if this is a stupid question. I run the simple command: plot(1:1000000) And it seems SO slow! Igor blasts through this. My theory is that R is redrawing the screen for every point that's being graphed. Is it possible to control how often R redraws a plot as its building it -

I want to use the aggregate function to summarize data by a factor (my field plots), but I want the summary to be the majority level of another factor. For example, given the dataframe: Plot1 big Plot1 big Plot1 small Plot2 big Plot2 small Plot2 small Plot3 small Plot3 small Plot3 small My desired result would be: Plot1 big Plot2 small Plot3 small I