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NumPy: Partition an array in a specified position and move all the smaller elements to the left

NumPy Sorting and Searching: Exercise-7 with Solution

Write a NumPy program to partition a given array in a specified position and move all the smaller elements values to the left of the partition, and the remaining values to the right, in arbitrary order (based on random choice).

Sample Solution:

Python Code:

import numpy as np
nums = np.array([70, 50, 20, 30, -11, 60, 50, 40])
print("Original array:")
print(nums)
print("\nAfter partitioning on 4 the position:")
print(np.partition(nums, 4))

Sample Output:

Original array:
[ 70  50  20  30 -11  60  50  40]

After partitioning on 4 the position:
[-11  30  20  40  50  50  60  70]

Pictorial Presentation:

NumPy: Partition an array in a specified position and move all the smaller elements to the left.

Python Code Editor:

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Previous: Write a NumPy program to sort a given complex array using the real part first, then the imaginary part.
Next: Write a NumPy program to sort the specified number of elements from beginning of a given array .

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