Create arrays_Muhammet_Berk_Can.py

Week04/arrays_Muhammet_Berk_Can.py

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+import numpy as np
+
+def replace_center_with_minus_one(d, n, m):
+    """
+    :param d: Number of digit for the random integers.
+    :param n: Size of the main array.
+    :param m: Size of the center array that will be replaced with '-1'.
+    :return: A modified numpy array with its center replaced by '-1'.
+    """
+
+    if(m > n or d <= 0 or n < 0 or m < 0):
+        raise ValueError
+
+    min_val = 10 ** (d -1)   #Minimum value for 'd' digit number
+    max_val = 10 ** d - 1    #Maximum value for 'd' digit number
+    array = np.random.randint(min_val, max_val, size=(n, n)) #Creating n-by-n array with random 'd' digit numbers
+
+    first_point = (n - m) // 2      # m-by-m array's start index to be replaced by -1
+    last_point = (n - m) // 2 + m   # m-by-m array's end index to be replaced by -1
+
+
+    for i in range(first_point, last_point):    # Replacing the center of the n-by-n matrix with m-by-m '-1' matrix
+        for j in range(first_point, last_point):
+            array[i,j] = -1
+
+    return array
+
+print(replace_center_with_minus_one(3, 9, 3))