[GRASS-dev] r.li: new version and tests

Paolo Cavallini cavallini at faunalia.it
Tue Oct 10 01:53:29 EDT 2006

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No speed test for now; theoretically it should be *much* faster (earlier
rough tests gave a 4x improvements), as it is multithreaded.
The main advantage is that the code is much easier to maintain, and
adding/modifying indices is easier (have you had a look to the code?).
For me it is ready for 6.3; only a few indices are implemented now, but
those who are should be ok. I would vote for having it included in trunk.

Hamish ha scritto:
> Paolo Cavallini wrote:
>> A new version of r.li (0.2.6) is available at the usual site:
>> http://www.faunalia.it/download/r_li/
>> A bug preventing floating points calculations has been discovered and
>> fixed. First test on the comparison with r.le give very encouraging
>> results: numeric differences between the two programs are *very*
>> small, presumably due to rounding effects. A map of the differences is
>> available: http://www.faunalia.it/download/r_li/shannon.png is the
>> resulting map (Shannon index)
>> http://www.faunalia.it/download/r_li/diff.png is the map of the
>> differences. All the best.
> Nice.
> what's the difference in running times?
>   G63> time r.le.patch map=rastermap
>   etc
> when will this be ready for 6.3-cvs? (if that's your intention)
> what are the advantages over r.le?
> Hamish
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Paolo Cavallini
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