From: François Fleuret <francois@fleuret.org>
Date: Sun, 24 Mar 2024 10:36:44 +0000 (+0100)
Subject: Update.
X-Git-Url: https://www.fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=picoclvr.git;a=commitdiff_plain;h=9bf6dde1249fde5ba0ca2688599d8dd324d8c503

Update.
---

diff --git a/escape.py b/escape.py
index 93e3052..fc4fbbc 100755
--- a/escape.py
+++ b/escape.py
@@ -111,13 +111,12 @@ def episodes2seq(states, actions, rewards, lookahead_delta=None):
 
     if lookahead_delta is not None:
         r = rewards
-        print(f"{r.size()=} {lookahead_delta=}")
         u = F.pad(r, (0, lookahead_delta - 1)).as_strided(
             (r.size(0), r.size(1), lookahead_delta),
             (r.size(1) + lookahead_delta - 1, 1, 1),
         )
-        a = u.min(dim=-1).values
-        b = u.max(dim=-1).values
+        a = u[:, :, 1:].min(dim=-1).values
+        b = u[:, :, 1:].max(dim=-1).values
         s = (a < 0).long() * a + (a >= 0).long() * b
         lookahead_rewards = (1 + s[:, :, None]) + first_lookahead_rewards_code