Perform the following Indexing Operations using Numpy array. array2d = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]) . Data science using Python in Anaconda - Jupyter


Question

1. Get first row first col

2. Get first row second col

3. Get first row second col

4. Get second row second col




Program: -

import numpy as np 
array2d = np.array([[123], [456], [789]])
print(array2d)
print("first row first col :- ",array2d[0:10:1])
print("first row second col :- ",array2d[0:1,1:2])
print("second row first col :- ",array2d[1:2,0:1])
print("second row second col :- ",array2d[1:2,1:2])


Output: -
[[1 2 3] [4 5 6] [7 8 9]] first row first col :- [[1]] first row second col :- [[2]] second row first col :- [[4]] second row second col :- [[5]]