Initial commit

frogs/frogs.py

@@ -0,0 +1,32 @@
+#!/bin/python3
+import numpy as np
+uniform = np.random.random
+from time import sleep
+
+p = 0.6
+q = 0.2
+
+N = 10000
+visits = [0, 0]
+cur = 0
+for i in range(N):
+    if cur == 0:
+        if uniform() < p:
+            cur = 1
+            visits[1] += 1
+        else:
+            visits[0] += 1
+    elif cur == 1:
+        if uniform() < q:
+            cur = 0
+            visits[0] += 1
+        else:
+            visits[1] += 1
+    #print(f"From total {N} visits:")
+    #print(f"  {visits[0]} visits to 0")
+    #print(f"  {visits[1]} visits to 1")
+    #sleep(15/1000)
+n = sum(visits)
+print(f"{n}/{N}")
+print(f"  {visits[0]/n:.4f} of the time at 0 {visits[0]} total")
+print(f"  {visits[1]/n:.4f} of the time at 1 {visits[1]} total")