Question

Shown below is the input NumPy array. Delete column two and replace it with the new column given below.

Answer 1

import NumPy

sampleArray = NumPy.array([[34,43,73],[82,22,12],[53,94,66]]) 

newColumn = NumPy.array([[10,10,10]])

Expected Output:

Printing Original array

[[34 43 73]

 [82 22 12]

 [53 94 66]]

Array after deleting column 2 on axis 1

[[34 73]

 [82 12]

 [53 66]]

Array after inserting column 2 on axis 1

[[34 10 73]

 [82 10 12]

 [53 10 66]]

Solution:

import NumPy

print(“Printing Original array”)

sampleArray = NumPy.array([[34,43,73],[82,22,12],[53,94,66]]) 

print (sampleArray)

print(“Array after deleting column 2 on axis 1”)

sampleArray = NumPy.delete(sampleArray , 1, axis = 1) 

print (sampleArray)

arr = NumPy.array([[10,10,10]])

print(“Array after inserting column 2 on axis 1”)

sampleArray = NumPy.insert(sampleArray , 1, arr, axis = 1) 

print (sampleArray)