Fixed but in Greedy agent and created the Pricing env for vectorisation

Author: miTTimmiTTim

ddopai/agents/dynamic_pricing/greedy.py

@@ -71,7 +71,7 @@ def draw_action(self, observation: np.ndarray):
     def fit(self, X, Y, action):
         assert self.mode == "train"
         self.t += 1
-        X = np.concat([X, X * action])
+        X = np.concatenate([X, X * action])
         self.X = np.vstack([self.X, X])
         self.Y = np.vstack([self.Y, Y])
         self.parameter_update()

nbs/30_agents/42_DP_agents/10_greedy_agent.ipynb

@@ -108,7 +108,7 @@
     "    def fit(self, X, Y, action):\n",
     "        assert self.mode == \"train\"\n",
     "        self.t += 1\n",
-    "        X = np.concat([X, X * action])\n",
+    "        X = np.concatenate([X, X * action])\n",
     "        self.X = np.vstack([self.X, X])\n",
     "        self.Y = np.vstack([self.Y, Y])\n",
     "        self.parameter_update()\n",