Add Mad

main.py

@@ -45,7 +45,6 @@ def get_median():
     sorted_state = state
     sorted_state.sort()
     n = len(sorted_state)
-    median = 0
     if n % 2 == 0:
         median = (sorted_state[n // 2 - 1] + sorted_state[n // 2]) / 2
     else:
@@ -112,6 +111,14 @@ def get_population_standard_deviation():
     return std_dev
 
 
+def get_mean_average_deviation():
+    global state
+    mean = get_mean()
+    n = len(state)
+    mad = sum(abs(x - mean) for x in state) / n
+    return mad
+
+
 def start_shell():
     global state
     state = []
@@ -149,8 +156,10 @@ def handle_input():
         case 'pvariance':
             print(get_population_variance())
         case 'iqr':
-            lower, upper, range = get_iqr()
-            print(f"Lower: {lower} - Upper: {upper} - Range: {range}")
+            lower, upper, iqr = get_iqr()
+            print(f"Lower: {lower} - Upper: {upper} - Range: {iqr}")
+        case 'mad':
+            print(get_mean_average_deviation())
         case 'print':
             if state is not None:
                 print(f"{state}")