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Tagged with sutton-barto markov-decision-process
2 questions
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Why does the definition of the reward function $r(s, a, s')$ involve the term $p(s' \mid s, a)$?
Sutton and Barto define the state–action–next-state reward function, $r(s, a, s')$, as follows (equation 3.6, p. 49)
$$
r(s, a, s^{\prime}) \doteq \mathbb{E}\left[R_{t} \mid S_{t-1}=s, A_{t-1}=a, S_{t}...
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$E_{\pi}[R_{t+1}|S_t=s,A_t=a] = E[R_{t+1}|S_t=s,A_t=a]$?
I would like to solve the first question of Exercise 3.19 from Sutton and Barto:
Exercise 3.19 The value of an action, $q_{\pi}(s, a)$, depends on the expected next reward and
the expected sum of the ...