categorical_gru_policy.py 文件源码

def dist_info_sym(self, obs_var, state_info_vars):
        n_batches, n_steps = obs_var.shape[:2]
        obs_var = obs_var.reshape((n_batches, n_steps, -1))
        if self.state_include_action:
            prev_action_var = state_info_vars["prev_action"]
            all_input_var = TT.concatenate(
                [obs_var, prev_action_var],
                axis=2
            )
        else:
            all_input_var = obs_var

        if self.feature_network is None:
            return dict(
                prob=L.get_output(
                    self.prob_network.output_layer,
                    {self.l_input: all_input_var}
                )
            )
        else:
            flat_input_var = TT.reshape(all_input_var, (-1, self.input_dim))
            return dict(
                prob=L.get_output(
                    self.prob_network.output_layer,
                    {self.l_input: all_input_var, self.feature_network.input_layer: flat_input_var}
                )
            )