similar to: Inconsistencies in device_Raster when axes are reflected

Hi R-help list What is the threshold for the `useRaster` argument of graphics::image() to decide whether a grid is "regular" or not (i.e. the usage of useRaster=T is allowed or not). My `dev.capabilities("rasterImage")$rasterImage` is "yes". I could not find this information in the internet. I also could not find the source code of the graphics::image() function (I

R 2.1.0/src/include from 2005/04/18 download Naming inconsistent for guards as well but that's pedantic. Simple convention: file <foo.h> #ifndef R_FOO_H file <R_ext/bar.h> #ifndef R_EXT_BAR_H Missing guards: <IOStuff.h> <Internal.h> <Parse.h> <R_ext/GraphicsBase.h> <R_ext/GraphicsDevice.h> <R_ext/GraphicsEngine.h>

Has anyone yet tried incorporating rasterImage into the base image() function? It seems to make a *huge* difference, with a very small number of added/changed lines of code. (Of course I have barely tested it at all.) Is there any reason this *shouldn't* go into the next release? > source("image.R") > z <- matrix(runif(1e6),nrow=1000) > image(z) >

Hello, I have a data frame which looks like > head(d) a1 a2 n j col 1 1 1 88341002 11 #E7E7E7 2 1 2 25094882 11 #E7E7E7 3 1 3 16916246 11 #E7E7E7 4 1 4 14289229 11 #E7E7E7 5 1 5 11945929 11 #E7E7E7 6 1 6 8401235 11 #E7E7E7 The values in 'j' run from 1 to 11. I would like to plot the point (a1,a2) with color given by j I tried mi <-

Dear R users, I have a desktop computer and a laptop, both of them with Ubuntu Lucid. The former has R2.10 installed from Ubuntu repositories (this is the most recent version in the repositories), while the latter has R2.13 from the CRAN repositories. I noticed that postscript files generated with R2.10 are "better" than files generated with the latest release of R, in particular for

Hello, I would like to suggest the following change to image.default in src\library\graphics\R\image.R: 98c98 < plot(NA, NA, xlim = xlim, ylim = ylim, type = "n", xaxs = xaxs, --- > plot(x[1], y[1], xlim = xlim, ylim = ylim, type = "n", xaxs = xaxs, This provides all the support of axis.POSIXt that plot.default gives, currently the default new plot in

the details section of ?image says: > If useRaster is not specified, raster images are used when the > getOption("preferRaster") is true, the grid is regular and either > dev.capabilities("raster") is "yes" or it is "non-missing" and there > are no missing values. but in my experience this is never the case and

Hi, When R generates density plots and these are exported to postscript( a=matrix(1:100,10,10);image(a,col=rainbow(100);dev.copy2eps(file="image.eps") ) The result often looks bad when rendered on screen. The help page states that this is because programs use anti-aliasing. That seems to be true - turning off anti-aliasing for gs (-dGraphicsAlphaBits=1) of in OSX's preview makes

Hi, I have a matrix that I am displaying via image. I would like to obtain an image where the columns are 'grouped' (I have a grouping variable). But I am not sure how how I can draw the lines to indicate the grouping in the margin. I realize this is essentially waht heatmap does but as I have a set of custom breaks and colors I wanted to generate this via image. I can see that it is a

Hi R users and experts, I am interested in learning more about the use of 3D plots. Specifically, I want to add points and lines to a surface plot. And get the axes and labels plotted also. Here is what I have tried with an example data set : library(rgl) vol2 <- 2*volcano # Exaggerate the relief library(reshape) mvol2 <- melt(vol2) str(mvol2) # First, persp and persp3d plots do not succeed

I want to find out what are the associations with another active record class. So If my class is as below: Class Component < ActiveRecord::Base has_many :branches end class Branch < ActiveRecord::Base belongs_to :component end and then I do Component.reflections[:branches].active_record I would expect that to be Branch but it is in fact Component. The inspection of

This is an update on some current work on the C API for use in R extensions. The internal R implementation makes use of tens of thousands of C entry points. On Linux and Windows, which support visibility restrictions, most of these are visible only within the R executble or shared library. About 1500 are not hidden and are visible to dynamically loaded shared libraries, such as ones in packages,

A sample picture of this issue: http://hera.pmcl.com/DMap/BeachFX/Bug.gif ________________________________ From: Weilbacher, John Sent: Wednesday, May 31, 2006 10:46 AM To: 'r-help@stat.math.ethz.ch' Subject: Graphical Limitiations of the (D)COM Server AxSTATCONNECTORCLNTLib.AxStatConnectorGraphicsDevice I am having issues displaying Trellis Graphs using the

Hi, I'm no longer on the subscribing list, but was hoping to get my question posted.? Please inform if this is ok, although I am guessing you wont post with the image below.? If so, let me know and I will resend without the image. Thanks Hi, I just upgraded my system and my version of R all at once.? Upon running old code for heatmaps etc, I suddenly notice that there is an odd grid pattern

Hi Ivan Can you please clarify what input files should be used with your proposed function? I tried a few files in r-svn/src/include and one of them gave me an error. > getdecl("~/R/r-svn/src/include/R.h") [1] "R_FlushConsole" "R_ProcessEvents" "R_WaitEvent" > getdecl("~/R/r-svn/src/include/Rdefines.h") Error in regmatches(lines,

Thanks for working on this Luke! We appreciate your efforts to make it easier to tell what's in the exported API and we're very happy to work with you on any changes needed to tidyverse/r-lib packages. Hadley On Thu, Jun 6, 2024 at 9:47?AM luke-tierney--- via R-devel < r-devel at r-project.org> wrote: > This is an update on some current work on the C API for use in R >

Thanks so much for your wonderful work, Luke! I didn't expect such a clarification to happen this soon. This is really great. For convenience, I created a quick web page to search the result of tools:::funAPI(). https://yutannihilation.github.io/R-fun-API/ Hope this helps those who are too lazy to install R-devel to check. Best, Yutani 2024?6?6?(?) 23:47 luke-tierney--- via R-devel

Thanks for sharing this overview of an interesting and much-needed project. You mention that R exports about 1500 symbols (on platforms supporting visibility) but this subject isn't mentioned explicitly again in your note, so I'm wondering how things tie together. Un-exported symbols cannot be part of the API - how would people use them in this case? In a perfect world the set of

Hello everyone, I''m new in contributing and i saw in the contributing-guides, that i have to write an email at this list. I hope, that''s the right place for this. If it''s not, i''M really sorry.. ;) Could someone please give me feedback about this lighthouse-ticket?

Dear Group, I'm trying to build a set of new graphic device drivers. I use the devNull example a a beginning point: $ R CMD SHLIB devNull.c gcc -shared -L/usr/local/lib -o devNull.so devNull.o (everything works OK) $ R CMD SHLIB devNull.cpp g++ -shared -L/usr/local/lib -o devNull.so devNull.o (everything works OK) The difficulties start when trying to compile manually. I compile the