Econ-ark

Release Date: 08-08-2020

Major Changes

- Add a custom KrusellSmith Model [762](https://github.com/econ-ark/HARK/pull/762)
- Simulations now uses a dictionary `history` to store state history instead of `_hist` attributes [674](https://github.com/econ-ark/HARK/pull/674)
- Removed time flipping and time flow state, "forward/backward time" through data access [570](https://github.com/econ-ark/HARK/pull/570)
- Simulation draw methods are now individual distributions like `Uniform`, `Lognormal`, `Weibull` [624](https://github.com/econ-ark/HARK/pull/624)

Minor Changes

- unpackcFunc is deprecated, use unpack(parameter) to unpack a parameter after solving the model [784](https://github.com/econ-ark/HARK/pull/784)
- Remove deprecated Solution Class, use HARKObject across the codebase [772](https://github.com/econ-ark/HARK/pull/772)
- Add option to find crossing points in the envelope step of DCEGM algorithm [758](https://github.com/econ-ark/HARK/pull/758)
- Fix reset bug in the behaviour of AgentType.resetRNG(), implemented individual resetRNG methods for AgentTypes [757](https://github.com/econ-ark/HARK/pull/757)
- Seeds are set at initialisation of a distribution object rather than draw method [691](https://github.com/econ-ark/HARK/pull/691) [#750](https://github.com/econ-ark/HARK/pull/750), [#729](https://github.com/econ-ark/HARK/pull/729)
- Deal with portfolio share of 'bad' assets [749](https://github.com/econ-ark/HARK/pull/749)
- Fix bug in make_figs utilities function [755](https://github.com/econ-ark/HARK/pull/755)
- Fix typo bug in Perfect Foresight Model solver [743](https://github.com/econ-ark/HARK/pull/743)
- Add initial support for logging in ConsIndShockModel [714](https://github.com/econ-ark/HARK/pull/714)
- Speed up simulation in AggShockMarkovConsumerType [702](https://github.com/econ-ark/HARK/pull/702)
- Fix logic bug in DiscreteDistribution draw method [715](https://github.com/econ-ark/HARK/pull/715)
- Implemented distributeParams to distributes heterogeneous values of one parameter to a set of agents [692](https://github.com/econ-ark/HARK/pull/692)
- NelderMead is now part of estimation [693](https://github.com/econ-ark/HARK/pull/693)
- Fix typo bug in parallel [682](https://github.com/econ-ark/HARK/pull/682)
- Fix DiscreteDstn to make it work with multivariate distributions [646](https://github.com/econ-ark/HARK/pull/646)
- BayerLuetticke removed from HARK, is now a REMARK [603](https://github.com/econ-ark/HARK/pull/603)
- cstwMPC removed from HARK, is now a REMARK [666](https://github.com/econ-ark/HARK/pull/666)
- SolvingMicroDSOPs removed from HARK, is now a REMARK [651](https://github.com/econ-ark/HARK/pull/651)
- constructLogNormalIncomeProcess is now a method of IndShockConsumerType [661](https://github.com/econ-ark/HARK/pull/661)
- Discretize continuous distributions [657](https://github.com/econ-ark/HARK/pull/657)
- Data used in cstwMPC is now in HARK.datasets [622](https://github.com/econ-ark/HARK/pull/622)
- Refactor checkConditions by adding a checkCondition method instead of writing custom checks for each condition [568](https://github.com/econ-ark/HARK/pull/568)
- Examples update [768](https://github.com/econ-ark/HARK/pull/768), [#759](https://github.com/econ-ark/HARK/pull/759), [#756](https://github.com/econ-ark/HARK/pull/756), [#727](https://github.com/econ-ark/HARK/pull/727), [#698](https://github.com/econ-ark/HARK/pull/698), [#697](https://github.com/econ-ark/HARK/pull/697), [#561](https://github.com/econ-ark/HARK/pull/561), [#654](https://github.com/econ-ark/HARK/pull/654), [#633](https://github.com/econ-ark/HARK/pull/633), [#775](https://github.com/econ-ark/HARK/pull/775)

Release Date: 17-04-2020

Major Changes

* Add Bellman equations for cyclical model example [600](https://github.com/econ-ark/HARK/pull/600)

* read_shocks now reads mortality as well [613](https://github.com/econ-ark/HARK/pull/613)

* Discrete probability distributions are now classes [610](https://github.com/econ-ark/HARK/pull/610)

Minor Changes

Release Date: 24-03-2020

Major Changes
* Default parameters dictionaries for ConsumptionSaving models have been moved from ConsumerParameters to nearby the classes that use them. [527](https://github.com/econ-ark/HARK/pull/527)

* Improvements and cleanup of ConsPortfolioModel, and adding the ability to specify an age-varying list of RiskyAvg and RiskyStd. [577](https://github.com/econ-ark/HARK/pull/527)

* Rewrite and simplification of ConsPortfolioModel solver. [594](https://github.com/econ-ark/HARK/pull/594)

Minor Changes

Release Date: 05-03-2020

Major Changes
- Last release to support Python 2.7, future releases of econ-ark will support Python 3.6+ [478](https://github.com/econ-ark/HARK/pull/478)
- Move non-reusable model code to examples directory, BayerLuetticke, FashionVictim now in examples instead of in HARK code [442](https://github.com/econ-ark/HARK/pull/442)
- Load default parameters for ConsumptionSaving models [466](https://github.com/econ-ark/HARK/pull/466)
- Improved implementaion of parallelNelderMead [300](https://github.com/econ-ark/HARK/pull/300)

Minor Changes
- Notebook utility functions for determining platform, GUI, latex (installation) are available in HARK.utilities [512](https://github.com/econ-ark/HARK/pull/512)
- Few DemARKs moved to examples [472](https://github.com/econ-ark/HARK/pull/472)
- MaxKinks available in ConsumerParameters again [486](https://github.com/econ-ark/HARK/pull/486)

Release Date: 12-12-2019

Major Changes

- Added constrained perfect foresight model solution. ([299](https://github.com/econ-ark/HARK/pull/299)

Minor Changes

- Fixed slicing error in minimizeNelderMead. ([460](https://github.com/econ-ark/HARK/pull/460))
- Fixed matplotlib GUI error. ([444](https://github.com/econ-ark/HARK/pull/444))
- Pinned sphinx dependency. ([436](https://github.com/econ-ark/HARK/pull/436))
- Fixed bug in ConsPortfolioModel in which the same risky rate of return would be drawn over and over. ([433](https://github.com/econ-ark/HARK/pull/433))
- Fixed sphinx dependency errors. ([411](https://github.com/econ-ark/HARK/pull/411))
- Refactored simultation.py. ([408](https://github.com/econ-ark/HARK/pull/408))
- AgentType.simulate() now throws informative errors if attributes required for simulation do not exist, or initializeSim() has never been called. ([320](https://github.com/econ-ark/HARK/pull/320))

Release Date: 10-03-2019

Minor Changes
- Add some bugfixes and unit tests to HARK.core. ([401](https://github.com/econ-ark/HARK/pull/401))
- Fix error in discrete portfolio choice's AdjustPrb. ([391](https://github.com/econ-ark/HARK/pull/391))