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something wrong in matplotlib

2

The file is in [Link](https://github.com/ShangtongZhang/reinforcement-learning-an-introduction/blob/master/chapter04/gamblers_problem.py). ERROR: `RuntimeError: Invalid DISPLAY variable` The code: > matplotlib.use('Agg') might be set before code: > import matplotlib.pyplot as plt

In the `train_AREL.py`. When calculate the Reward for training the generator: ``` rewards = Variable(gen_score.data - 0 * normed_seq_log_probs.data) ``` why you minus the `0 * normed_seq_log_probs.data`? in the commit...

How to use name entity?

4

Hi: After reading the doc, i found it mentioned that : > One can notice that some words are missing. Indeed, some words might not be related to any other...