TSP 1.1-5 (02/21/2017)
- fixed TSP labels.
- fixed tour_length for ETSP and added tests.
TSP 1.1-4 (2/21/2016)
- fixed bug in arbitrary insertion for TSPs with two or less cities (bug report by Shrinidhee Shevade).
- concorde and linkern help: exe argument was removed. The exe control argument for both methods in solve_TSP is now deprecated. Use concorde_path(path) instead.
- concorde and linkern gained a control argument verbose to suppress the output.
TSP 1.1-3 (9/2/2015)
- two-opt now works correctly with asymmetric TSPs (bug report by Luis Martinez).
TSP 1.1-2 (7/30/2015)
- Fixed imports for non-base packages.
TSP 1.1-1 (5/15/2015)
- improved speed of C code.
- compatibility with new release of testthat
TSP 1.1-0 (3/14/2015)
- default method is now arbitrary_insertion with two_opt refinement.
- we use foreach (use doParallel) to compute repetitions in parallel
- ETSP (Euclidean TSP) added.
- generic and arguments for tour_lengh have # Changed (fist argument is now a tour).
- method "2-opt" was renamed to "two_opt" so it can also be used as a proper variable name.
- solve_TSP gained methods "identity" and "random".
- solve_TSP gained options "repetition" and "two_opt".
TSP 1.0-10 (2/3/2015)
- added check for argument cut in cut_tour
- Finding concord and linkern is now case insensitive (Reported by Mark Otto)
TSP 1.0-9 (7/16/2014)
- Check for NAs in distances.
- +INF and -INF are now handled in solve_TSP.
- fixed single quotes in vignette.
TSP 1.0-8 (9/6/2013)
TSP 1.0-7 (8/22/2012)
- Added PACKAGE argument to C calls.
TSP 1.0-6 (11/29/2011)
- Fixed bug in read_TSPLIB.
TSP 1.0-5 (11/10/2011)
- Changed constructor for TOUR to allow for method and tour_length.
- Bugfix: labels in creator ATSP() (reported by Tiffany Chen)
TSP 1.0-4 (8/31/2011)
- Fixed bug with missing row/column labels in as.ATSP() (reported by Ian Deters)
TSP 1.0-3 (5/26/2011)
TSP 1.0-2 (1/14/2011)
- Fixed Windows/R bug with temp files.
- Fixed the code for SpatialLines thanks to Roger Bivand.
TSP 0.1-2 (9/18/2006)