[R] The desire for prettier and cheaper images ...
maechler at stat.math.ethz.ch
Wed Aug 13 12:57:11 CEST 2003
>>>>> "ChRi" == Ritter, Christian C MCIL-CTGAS <christian.ritter at shell.com>
>>>>> on Wed, 13 Aug 2003 11:49:03 +0200 writes:
ChRi> This might be easy (but I didn't find an answer in the archives).
ChRi> I'm trying to make nice looking images (using image()).
ChRi> To make them look nice (not jagged), it usually takes
ChRi> me at least 100x100 points. This can be slow for
ChRi> frequent redraws.
and also for (postscript) printing.
For true image data, it would be nice to have "true pixel-map"
graphics as part of the basic graphic engine, but I'm not really
ChRi> Is there a smarter (less point intensive) way?
ChRi> I was thinking in terms of hexabins, for example,
ChRi> which for much less jagged looking regions, or of an
ChRi> option to image ( or a variation) which internally
ChRi> increases the grid.
ChRi> Any help welcome. Thanks in advance.
There's the "hexbin" package from Bioconductor for hexagonal bin
plots -- which really does help for some of the problems you mention.
Martin Maechler <maechler at stat.math.ethz.ch> http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum LEO C16 Leonhardstr. 27
ETH (Federal Inst. Technology) 8092 Zurich SWITZERLAND
phone: x-41-1-632-3408 fax: ...-1228 <><
More information about the R-help