This fixes NVlabs#6

Author: Ubuntu

ga3c/Config.py

@@ -108,7 +108,7 @@ class Config:
     # Epsilon (regularize policy lag in GA3C)
     LOG_EPSILON = 1e-6
     # Training min batch size - increasing the batch size increases the stability of the algorithm, but make learning slower
-    TRAINING_MIN_BATCH_SIZE = 00
+    TRAINING_MIN_BATCH_SIZE = 0
 
     #########################################################################
     # Log and save

ga3c/ThreadTrainer.py

@@ -47,9 +47,9 @@ def run(self):
                 if batch_size == 0:
                     x__ = x_; r__ = r_; a__ = a_
                 else:
-                    np.concatenate((x__, x_))
-                    np.concatenate((r__, r_))
-                    np.concatenate((a__, a_))
+                    x__ = np.concatenate((x__, x_))
+                    r__ = np.concatenate((r__, r_))
+                    a__ = np.concatenate((a__, a_))
                 batch_size += x_.shape[0]
 
             if Config.TRAIN_MODELS: