source: coopr.pyomo

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Diff Rev Age Author Log Message
(edit) @2201   10 years wehart Update to Coopr to account for changes in PyUtilib? package names.
(edit) @2194   10 years wehart Merged revisions 2112-2193 via svnmerge from …
(edit) @2170   10 years wehart A rework of the NL/LP file writers. This now uses the canonical …
(edit) @2166   10 years jwatson Allowing PyomoModel? to load a solver results object with a status …
(edit) @2163   10 years wehart Adding diagnostic output.
(edit) @2161   10 years jwatson Cut the run-time of the PyomoModel? _load_solution method by 2/3 - it's …
(edit) @2160   10 years wehart Adding the pyomo2lp and pyomo2nl commands. Setting up the convert.py …
(edit) @2159   10 years wehart Updates to reconfigure how files are written out by Pyomo.
(edit) @2148   10 years wehart Bug fixes and pyomo command tests.
(edit) @2147   10 years wehart Fixing bugs
(edit) @2146   10 years wehart Other updates from my laptop…
(edit) @2145   10 years wehart A stab at refactoring the pyomo command-line script, to make it easier …
(edit) @2142   10 years wehart Bug fix. Parameter indices do not have a keys() attribute.
(edit) @2133   10 years wehart A draft implementation of expressions for intrinsic functions.
(edit) @2130   10 years jwatson Mirroring previous commit for singleton (non-indexed) parameters, …
(edit) @2129   10 years jwatson I have changed the setitem interface for the variable base class …
(edit) @2128   10 years wehart Adding the @set_options decorator, which can be used to specify …
(edit) @2125   10 years wehart Extended collection of linear terms to ignore identity expressions in …
(edit) @2122   10 years wehart Adding methods to clear objective/constraint data.
(edit) @2115   10 years wehart Initialized merge tracking via "svnmerge" with revisions "1-2111" from …
(edit) @2114   10 years wehart Creating coopr.pyomo stable 2.2 branch
(edit) @2108   10 years wehart Changes to make the API for Model() functions/attributes by 1-based …
(edit) @2107   10 years wehart Updating solver heuristics to use xrange() and xsequence()
(edit) @2106   10 years wehart Using the sequence() and xsequence() functions to further simplify …
(edit) @2105   10 years wehart Adding an xsequence() function, which mimics xrange.
(edit) @2099   10 years wehart Removing some tabs. Add option to allow a Model to be named in its …
(edit) @2098   10 years wehart Allow expressions to be generated from a dictionary variable-id -> …
(edit) @2097   10 years wehart Updating Model statistics after a transformation.
(edit) @2096   10 years wehart Setup labeling for objectives.
(edit) @2094   10 years wehart Adding a sequence() function, which is analogous to range() for …
(edit) @2091   10 years wehart Tagging coopr.pyomo release 2.1
(edit) @2090   10 years wehart Merged revisions 2070-2089 via svnmerge from …
(edit) @2089   10 years wehart Update to changelog.
(edit) @2070   10 years wehart Merged revisions 1972-2069 via svnmerge from …
(edit) @2066   10 years jwatson Removed some TBD notes in the Benders example, and checked in the full …
(edit) @2064   10 years wehart Misc rework of variable presolving. Now, model statistics are stored …
(edit) @2063   10 years wehart Reformatting this example to make it narrower.
(edit) @2057   10 years wehart Misc cleanup of debugging facilities.
(edit) @2056   10 years wehart Fixes and tests for generating canonical representations.
(edit) @2055   10 years wehart Some additional documentation.
(edit) @2054   10 years wehart Pleliminary commit for a capability that can extract a canonical …
(edit) @2053   10 years wehart Adding ability to load a list or tuple of values into a Pyomo model. …
(edit) @2052   10 years wehart Updating to variable naming. Special symbols are mapped to a name …
(edit) @2051   10 years wehart Bug fix in the NEWGAP computation.
(edit) @2050   10 years wehart Adding support for denoting constraint inequalities as 'strict'. …
(edit) @2049   10 years wehart coopr.pyomo baseline changes due to change in GLPK output.
(edit) @2046   10 years wehart Resolving #3970. When a parameter is specified with a default value, …
(edit) @2045   10 years wehart Bug fix to 'random' solver
(edit) @2044   10 years wehart Adding a 'random' solver.
(edit) @2036   10 years jwatson Added "--solver-mipgap" option to the pyomo script, mirroring recent …
(edit) @2032   10 years jwatson More readability improvements to the Benders example.
(edit) @2031   10 years jwatson More prettification of the Benders example.
(edit) @2028   10 years jwatson Changed some references to "._model" to the new+improved ".model".
(edit) @2027   10 years wehart Simplified the syntax for adding a constraint to a Constraint object.
(edit) @2025   10 years wehart Reworking how components interact with models. Now, components can …
(edit) @2024   10 years wehart Added check to avoid printing an objective with an empty linear sum.
(edit) @2023   10 years jwatson Pyomo Benders example prettification and cleanup.
(edit) @2022   10 years wehart Removing debugging IO
(edit) @2021   10 years wehart Misc rework of exception management within Pyomo.
(edit) @2020   10 years wehart Misc updates. Cleaning out old models that are no longer used. …
(edit) @2018   10 years wehart Bug fix due to updates in results object.
(edit) @2017   10 years wehart Preliminary rework of the amplbook2 examples.
(edit) @2016   10 years wehart Adding helper functions that denote the number of constraints, …
(edit) @2015   10 years wehart Adding tests to confirm that set/index dimensionality checks work as …
(edit) @2012   10 years jwatson Some fixes to Benders example, identified when baseline-ing AMPL …
(edit) @2011   10 years wehart A change in semantics for setting up dimen and dim. This change …
(edit) @2010   10 years wehart Adding a transformation for eliminating fixed variables.
(edit) @2009   10 years wehart Adding an 'index' attribute to variable value objects, which allows a …
(edit) @2008   10 years wehart Adding helper functions for accessing constraints, variables and …
(edit) @2005   10 years wehart Adding tests to exercise the Pyomo command-line. Reworked error …
(edit) @2004   10 years wehart 1. Added --model-name option, which allos the specification of an …
(edit) @2002   10 years wehart Adding some tests to validate various types of output that are …
(edit) @2001   10 years wehart Adding a plugin interface for model transformations. This can be …
(edit) @2000   10 years wehart Bug fix.
(edit) @1999   10 years wehart Python 2.5 portability fixes.
(edit) @1996   10 years wehart JP's benders example with some misc edits. This runs, though I'm not …
(edit) @1995   10 years wehart Adding a 'create_name' function that simplifies the setup of indexed …
(edit) @1994   10 years wehart Initial setup of the PyomoModel?._name_conmap data structure. I've set …
(edit) @1993   10 years wehart Adding support for component index deactivation. Again, this isn't …
(edit) @1992   10 years wehart A rework of component management in Pyomo. This was initially started …
(edit) @1990   10 years jwatson Added code to throw a ValueError? exception when attempting to output a …
(edit) @1976   10 years wehart A hack to make the default 'dimen' be 1 when computing the ndim for a …
(edit) @1975   10 years wehart Bug fix. The ProductExpression? was not correctly testing for …
(edit) @1974   10 years wehart Updating PyPI categories
(edit) @1972   10 years wehart Merged revisions 1948-1971 via svnmerge from …
(edit) @1968   10 years wehart Bug fix when an expression has no arguments.
(edit) @1967   10 years wehart Creating the ComponentBase? class, which manages the initialization of …
(edit) @1966   10 years jwatson Transferring the reduced-cost variable attributes (if present) in the …
(edit) @1964   10 years wehart Adding tests that verify that index-generating functions can be …
(edit) @1963   10 years wehart Reworking SetArray? constructor to create temporary set objects for …
(edit) @1962   10 years wehart Some changes to allow list comprehensions and generator expressions to …
(edit) @1961   10 years wehart Documentation updates for sets.
(edit) @1959   10 years wehart Extended the constraint generation logic to evaluate whether the …
(edit) @1958   10 years wehart Reverting the change in r1953, which causes an error in our unit tests.
(edit) @1953   10 years jwatson Improved error diagnostics relating to illegal/unexpected set …
(edit) @1948   10 years wehart Merged revisions 1877-1947 via svnmerge from …
(edit) @1944   10 years jwatson Trapping errors during constraint construction that occur when users …
(edit) @1927   10 years jwatson Moved the pyomo diet2 example from "amplbook2" to "draft"; it contains …
(edit) @1926   10 years jwatson Minor fix to variable bounds checkin. All amplbook2 examples but one …
(edit) @1924   10 years jwatson I have significantly changed - and improved - the handling of variable …
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