Stefan van der Walt
f09c1208e7
ENH: graph: Fix typo.
2011-05-17 19:24:05 +02:00
Zach Pincus and Zach Pincus
340d92c711
Fix memory leak due to not properly using __cinit__ in heap classes
2011-05-09 10:04:32 -04:00
Zachary Pincus
171bd18f80
fix infinite-handling in mcp and precision issues in heap
2011-01-07 08:01:21 -05:00
Stefan van der Walt
20ab4cdaff
ENH: Update Cython imports.
2010-11-07 01:12:54 +02:00
Stefan van der Walt
1cde37aee6
Merge speed fixes to heap.pyx from Zach.
2010-04-10 22:29:09 +02:00
Zachary Pincus
4a0e4e2285
Oops: actually fix heap performance problem...
2010-04-08 18:13:45 -04:00
Zachary Pincus
56a5cadde2
Performance fix for heap; correctness for _mcp
...
(1) normalize_indices in _mcp.pyx should convert indices to ints: fixed
(2) huge (order of magnitude) performance problems in heap.pyx from changing
lines like:
ii = (i-1)/2 # CalcPrevAbs
to:
ii = (int)(i-1)/2 # CalcPrevAbs
for some reason, the latter goes through the python division machinery!
However, the former is invalid for cython >=0.12, so the proper solution is:
ii = (i-1)//2 # CalcPrevAbs
2010-04-08 18:11:47 -04:00
Stefan van der Walt
29d6046378
graph: Fix typo in heap docs. Wrap long line.
2010-01-01 13:32:11 +02:00
Stefan van der Walt
b7706e6550
graph: heap: Cast known integer after division.
2009-12-31 10:54:25 +02:00
Zachary Pincus
07fbf605b2
Fix heap.pyx to work when infinite values are pushed.
2009-12-30 14:31:08 -05:00
Zachary Pincus
4741c113ca
Add fast binary heap classes (from Almar Klein)
...
cython classes for fast binary heaps (that store (value, reference) pairs) are
now available from scikits.image.graph.heap
2009-12-29 13:04:22 -05:00
Stefan van der Walt