5 Commits

Author	SHA1	Message	Date
Zachary Pincus	0994d80d4e	allow negative-cost elements	2011-01-07 08:08:54 -05:00
Zachary Pincus	171bd18f80	fix infinite-handling in mcp and precision issues in heap	2011-01-07 08:01:21 -05:00
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	bc8ab59966	graph: mcp: Clean up long lines. Fix tests.	2010-01-01 13:24:32 +02:00
Zachary Pincus	6f39426485	Added classes for minimum-cost-pathfinding through n-d arrays. ... mcp.py presents the interface and a simple usage example; the classes of interest are in _mcp.pyx. Basic tests are included.	2009-12-29 13:05:53 -05:00