Daisuke Oyama
Daisuke Oyama
Here's a list of issues for discussion regarding the [`DiscreteDP`](https://github.com/QuantEcon/QuantEcon.py/blob/master/quantecon/markov/ddp.py) class. 1. This is the major issue: There is an intrinsic limitation of the current approach of `DiscreteDP`, that one...
- Original PR: https://github.com/QuantEcon/QuantEcon.py/pull/79#issuecomment-60921485 - Comment: https://github.com/QuantEcon/QuantEcon.py/pull/237#issuecomment-198891011
I think `compute_fixed_point` should return `v`, instead of `new_v`, when `np.max(np.abs(new_v - v))
```py Π = np.array([[0.8, 0.2], [0.2, 0.8]]) Qs = np.array([[[0.9409]], [[0.870489]]]) Rs = np.array([[[1., 0., 1.], [0., 0., 0.], [1., 0., 1.]], [[1., 0., 1.], [0., 0., 0.], [1., 0.,...
If [this notebook](https://github.com/oyamad/QuantEcon.notebooks/blob/e003347ff99d2c42f7769623486c49fc6f59a506/ddp_ex_MF_7_6_1_py.ipynb) is run with NumPy 1.13.0, policy iteration falls into an infinite loop oscillating between multiple optimal policies, probably due to rounding errors. This does not occur with...
I think it would be useful if we have a guideline about how to write a unittest for a function that involves randomness. There are two approaches: 1. Use `np.random.seed`...
This is a tiny point, but just for record: - Should `graph_tools.DiGraph` allow a null graph (a graph with no node)? (It is allowed in the current implementation.) - If...
1. The outcome of career/career_vf_plot.py does not look nice like the [figure](https://lectures.quantecon.org/_images/career_vf.png) in the lecture. 2. In the solution to Exercise 1: * `max_iter=200` should be added to `compute_fixed_point`. *...