[R] Manipulation of plot data in export file or 'in memory'

[Greg Stewart]

I'm trying to provide some help to someone using R in conjunction with
Locfit who has v. little programming experience.

He would like to be able to do further manipulation of (contour) plot data
to measure such things as area, and ideally to export the plots into another
program for direct comparison with plot sets generated by other methods.

I suggested to him that it may be possible to export the plots in a file
who's structure I know so that I could write conversion code to generate
files that can be imported in another program. I also thought it might be
possible to get a handle on the plot data structure in R (unless it's kept
by Locfit) and work from there for analysis / export function (and possibly
doing this with a C routine bound into R).

I haven't found anything in the documentation that would help
manipulate/understand graph export format or find handles. Could anyone
provide advice? Any pointers would be much appreciated.

Kind regards,

Greg Stewart
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