similar to: dichromat package

Dear list, The dichromat package defines a dichromat function which "Collapses red-green color distinctions to approximate the effect of the two common forms of red-green colour blindness, protanopia and deuteranopia." library(dichromat) library(grid) colorStrip <- function (colors = 1:3, draw = TRUE) { x <- seq(0, 1 - 1/length(colors), length = length(colors)) y <-

Dear useRs, we have just released a new version (1.2-0) of the "colorspace" package: http://CRAN.R-project.org/package=colorspace In addition to the infrastructure for transforming colors between different color spaces (RGB, HSV, HCL, and various others) and support for different types of color palettes (qualitative, sequential, diverging), there is now a new graphical user

Dear useRs, we have just released a new version (1.2-0) of the "colorspace" package: http://CRAN.R-project.org/package=colorspace In addition to the infrastructure for transforming colors between different color spaces (RGB, HSV, HCL, and various others) and support for different types of color palettes (qualitative, sequential, diverging), there is now a new graphical user

Everyone, I'm working with scatter plots with different colored symbols (via lattice). I'm currently using these colors for points and lines: col1 <- c(rgb(1, 0, 0), rgb(0, 0, 1), rgb(0, 1, 0), rgb(0.55482458, 0.40350876, 0.04166666), rgb(0, 0, 0)) plot(seq(along = col1), pch = 16, col = col1, cex = 1.5) I'm also using these with transparency (alpha

Dear All, During the last few days I've been trying to get ggplot2 installed in my Mac but when installing dependencies I cannot access dichromat. Error in download.file(url, destfile, method, mode = "wb", ...) : cannot open URL 'http://cran.stat.sfu.ca/bin/macosx/leopard/contrib/2.15/dichromat_1.2-4.tgz' Any suggestions? Accept my apologies if this is not the right

I will second Roger's suggestion, colorRampPalette is a great function for creating your own palettes. For example, Matlab's jet palette (also available in fields package under peculiar name 'tim.colors') can be defined by: jet.colors = colorRampPalette(c("#00007F", "blue", "#007FFF", "cyan", "#7FFF7F", "yellow",

The redundant fb helpers .load_lut, .gamma_set and .gamma_get are no longer used. Remove the dead code and hook up the crtc .gamma_set to use the crtc gamma_store directly instead of duplicating that info locally. Signed-off-by: Peter Rosin <peda at axentia.se> --- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 24 ------------------------ drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 1 -

The redundant fb helpers .load_lut, .gamma_set and .gamma_get are no longer used. Remove the dead code and hook up the crtc .gamma_set to use the crtc gamma_store directly instead of duplicating that info locally. Signed-off-by: Peter Rosin <peda at axentia.se> --- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 24 ------------------------ drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 1 -

On 03/01/2018 07:21 PM, nouveau-request at lists.freedesktop.org wrote: > > Message: 1 > Date: Thu, 1 Mar 2018 08:15:55 -0500 > From: Ilia Mirkin <imirkin at alum.mit.edu> > To: Mario Kleiner <mario.kleiner.de at gmail.com> > Cc: nouveau <nouveau at lists.freedesktop.org> > Subject: Re: [Nouveau] [PATCH] Fix colormap handling at screen depth > 30. >

The redundant fb helpers .load_lut, .gamma_set and .gamma_get are no longer used. Remove the dead code and hook up the crtc .gamma_set to use the crtc gamma_store directly instead of duplicating that info locally. Signed-off-by: Peter Rosin <peda at axentia.se> --- drivers/gpu/drm/radeon/atombios_crtc.c | 1 - drivers/gpu/drm/radeon/radeon_connectors.c | 7 ++-

Dear Thomas, Thank you, yes, that sounds good, and I take the point about integer overflow. Various questions: (a) Is there some way I can try out the routine with this modification? (I am on a Linux system where I am just a user - I cannot install new versions of software myself) ? (b) Is there a reference you can give me to a published paper where the method being used to compute the

I've fixed this by adding 0.5/mn to q. The problem (at least in principle) with multiplying them all up is integer overflow. By the time 0.5/mn underflows to zero, missing one value in the distribution won't matter. -thomas On Fri, 18 Dec 2009, David John Allwright wrote: > Dear Thomas, Right, thank you. Yes, I haven't looked at the source code > (because I don't

Dear r-devel, I have implemented a function to create color palettes with improved contrast and logical order, compared with the built-in ones: source("arni.colors.R") # code is given below barplot(rep(1,100), col=arni.colors(100), space=0, border=0, axes=F) par(mfrow=c(2,1)) # rainbow() has too much green... barplot(rep(1,50), col=rev(rainbow(50,end=0.7)), space=0, border=0,

Dear R users, I would like to announce an updated version of qualpalr: https://cran.r-project.org/package=qualpalr qualpalr uses color difference equations to generate distinct qualitative color palettes for use in R graphics. Version 0.2.1 has been redesigned to use a better, more efficient optimization method and moreover introduces methods to adapt palettes to color blindness. Please see

Dear R users, I would like to announce an updated version of qualpalr: https://cran.r-project.org/package=qualpalr qualpalr uses color difference equations to generate distinct qualitative color palettes for use in R graphics. Version 0.2.1 has been redesigned to use a better, more efficient optimization method and moreover introduces methods to adapt palettes to color blindness. Please see

Hi, I do have it installed on 2 Macs as well (OS X 10.2.8 and 10.3.7) and what I need does work, however if you do the command check routine some problems will likely be revealed. At least there were problems for me. Denis Le 08 févr. 2005, à 12:23, r-help-request@stat.math.ethz.ch a écrit : > De: Don MacQueen <macq@llnl.gov> > Date: 07 février 2005 16:05:14 GMT+01:00 > À:

A recent article in the earth science literature cited below and available at http://geography.uoregon.edu/datagraphics/EOS/ points out that rainbow color schemes and mixtures of green and yellow can be troublesome for people with color-deficient vision. The authors propose alternative schemes that can be viewed and downloaded in RGB, HSV, CMYK, and RGB256 formats from

When an RGB photo is displayed using R's image() function with the help of the pixmap (or rimage) package it is common to see an anomalous white line running across the picture (either horizontally or vertically). The line can be removed by simply stretching the image frame a little in the direction perpendicular to the anomalous line, or by maximizing the image frame (tested under Fedora 10;

Try: n = 100; x = matrix(seq(-10, 30, length.out=500), ncol=1) col = colorRampPalette( c("green", "white", "red"), space="rgb")(n) breaks = c(seq(-10, 0, length.out=n/2)-0.5, 0, seq(0, 30, length.out=n/2)+0.5) image(x, col=col, breaks=breaks) See also today's discussion on R-Help about "red-black-green color palette", since most of the

Thomas, that's a good point. I was thinking of anscombe[x1::y1] making it clear which one, but you would then want just x1::y1 to have unambiguous meaning on its own, which is impossible. As for x1:xN, it's unambiguous on its own. I thought one of the great advantages of R was that it could use different methods so that a new operator would not be needed. The colon operator would just