R-beta: first view, then save plot or image?
fredrigl at math.uio.no
Wed Jan 14 09:37:54 CET 1998
* Peter Dalgaard BSA <p.dalgaard at biostat.ku.dk>
| Bill Simpson <wsimpson at uwinnipeg.ca> writes:
| > Along a similar vein, is it possible to alter an image after it has been
| > plotted on screen? That is, first create image, then decide I want a
| > different palette of colours, then alter it. Again, is it possible to do
| > without re-executing image()? (In my case, without waiting another 1-2hrs)
| Sorry, no. Some of the external PostScript manipulators *might* be able
| to do this.
I've seen this demonstrated using the program `pstoedit' to generate
`xfig'-code from the R-generated PostScript. Thereafter you can use
`xfig' to alter the figure and convert back to PostScript. The
process is kinda involving, though.
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