NumPy: Copy data from a given array to another array
Copy Data to Another Array
Write a NumPy program to copy data from a given array to another array.
Sample Solution:
Python Code:
# Importing the NumPy library and aliasing it as 'np'
import numpy as np
# Creating a NumPy array 'x' containing integers
x = np.array([24, 27, 30, 29, 18, 14])
# Displaying a message indicating the original array will be printed
print("Original array:")
# Printing the original array 'x'
print(x)
# Creating an empty array 'y' with the same shape and dtype as 'x'
y = np.empty_like(x)
# Copying the contents of 'x' to array 'y'
y[:] = x
# Displaying a message indicating the copied array will be printed
print("\nCopy of the said array:")
# Printing the copied array 'y'
print(y)
Sample Output:
Original array: [24 27 30 29 18 14] Copy of the said array: [24 27 30 29 18 14]
Explanation:
In the above example -
- x = np.array([24, 27, 30, 29, 18, 14]): It creates a 1-dimensional NumPy array x with the given elements.
- y = np.empty_like(x): It creates a new NumPy array y with the same shape as x and uninitialized elements. In this case, y is also a 1-dimensional array with a length of 6.
- y[:] = x: It uses slice assignment to copy the elements from the array x to the array y. The colon : in y[:] represents a slice of the entire array y, so this line of code assigns all elements in x to the corresponding positions in y.
Finally print() function prints the array ‘y’.
Pictorial Presentation:
Python-Numpy Code Editor: