search for: name2col

Dear R core team Using the following code produces an empty plot (similar to col = NA): > plot(1:9, col = factor(rep(1:3,3), labels = c("red", "blue", "black"))) My question: Shouldn't one get at least a warning (or an error) if one tries to use a factor as col argument? Thanks for an answer. Regards, Christoph Buser

..., ColorIntegers, ColorHexcodes, ColorRGBs, ColorHSVs (ColorCMYs?) however the R-user probably shouldn't see the internal ColorIntegers of the C-code, as this might lead to confusion with the colornumbers resulting from the palette settings. So the R-user should see functions translating ColorName2ColorHexcode() ColorHexcode2ColorRGB() and ColorRGB2ColorHSV() and backwards ColorHSV2ColorRGB() ColorRGB2ColorHexcode(), rather not ColorHexcode2Colorname() as not every possible color is granted to have a name. Regards Jens P.S. the folowing function colorcode() I think is more general than rain...

I couldn't find this in online help or the archives: Is there any R function or object giving the mapping of the colornames as given by colors() into the hsv() model? Regards -- Dr. Jens Oehlschl?gel-Akiyoshi MD FACTORY GmbH Bayerstrasse 21 80335 M?nchen Tel.: 089 545 28-27 Fax.: 089 545 28-10 http://www.mdfactory.de

I couldn't find this in online help or the archives: Is there any R function or object giving the mapping of the colornames as given by colors() into the hsv() model? Regards -- Dr. Jens Oehlschl?gel-Akiyoshi MD FACTORY GmbH Bayerstrasse 21 80335 M?nchen Tel.: 089 545 28-27 Fax.: 089 545 28-10 http://www.mdfactory.de

...names to rgb in S syntax etc/rgb.txt maps 657 names to rgb in C syntax, but unlike colors() it has mixed upper and lower case The C source has the information twice rgb.c maps 657 names to rgb (mixed upper and lower case) graphics.c maps 657 names tp colorstrings (lower case only) internal name2col() and R colors() accesses those in graphics.c Here is the color representations from graphics.c in R code .ColorDataBase <- matrix(c( "white", "#FFFFFF", "aliceblue", "#F0F8FF", "antiquewhite", "#FAEBD7", "anti...

...N_REVISION in Rversion.h is now an integer (rather than a string) and hence usable as e.g. #if R_SVN_REVISION < 70000. o The entry points rgb2hsv and hsv2rgb have been migrated to package grDevices and so are no longer available. o R_GE_version has been increased to 10 and name2col removed (use R_GE_str2col instead). R internal colour codes are now defined using the typedef rcolor. o The REPROTECT macro now checks that the protect index is valid. o Several non-API entry points no longer used by R have been removed, including the Fortran entry poin...

...N_REVISION in Rversion.h is now an integer (rather than a string) and hence usable as e.g. #if R_SVN_REVISION < 70000. o The entry points rgb2hsv and hsv2rgb have been migrated to package grDevices and so are no longer available. o R_GE_version has been increased to 10 and name2col removed (use R_GE_str2col instead). R internal colour codes are now defined using the typedef rcolor. o The REPROTECT macro now checks that the protect index is valid. o Several non-API entry points no longer used by R have been removed, including the Fortran entry poin...