Create random.py

umarbrowser · web-flow · commit 6c08a3021e83 · 2019-10-17T11:57:52.000+01:00
diff --git a/Scripts/random.py b/Scripts/random.py
@@ -0,0 +1,26 @@
+# Python code for 1-D random walk. 
+import random 
+import numpy as np 
+import matplotlib.pyplot as plt 
+  
+
+prob = [0.05, 0.95]   
+  
+
+start = 2  
+positions = [start] 
+  
+
+rr = np.random.random(1000) 
+downp = rr < prob[0] 
+upp = rr > prob[1] 
+  
+  
+for idownp, iupp in zip(downp, upp): 
+    down = idownp and positions[-1] > 1
+    up = iupp and positions[-1] < 4
+    positions.append(positions[-1] - down + up) 
+  
+
+plt.plot(positions) 
+plt.show() 
