On 03/23/2010 10:23 AM, Ray Brownrigg wrote:
...

How about less than 2 seconds? [And 500 points in less than 15 seconds - on a 
2-year-old
DELL Optiplex GX755.]

The implementation below (at end) loops over all 'feasible' pairs of x values, 
then
selects the largest rectangle for each pair, subject to your specified 
constraints.  I
have no idea if it implements a previously published algorithm.

Other constraints are reasonably easily accommodated.

This is brilliant! May I use this algorithm, attributed to you of course, to improve the emptyspace function?

Jim

______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Reply via email to