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NumPy: Split an array of 14 elements into 3 arrays

NumPy: Array Object Exercise-61 with Solution

Write a NumPy program to split an array of 14 elements into 3 arrays, each with 2, 4, and 8 elements in the original order.
Sample array: [ 1 2 3 4 5 6 7 8 9 10 11 12 13 14]

Pictorial Presentation:

Python NumPy: Split an array of 14 elements into 3 arrays

Sample Solution:

Python Code:

# Importing the NumPy library with an alias 'np'
import numpy as np

# Creating a NumPy array 'x' containing numbers from 1 to 14 using np.arange
x = np.arange(1, 15)

# Displaying the original array 'x'
print("Original array:", x)

# Splitting the array 'x' into sub-arrays at specified indices using np.split
# The split points are at indices 2 and 6
# It creates three sub-arrays: [1, 2], [3, 4, 5, 6], and [7, 8, 9, 10, 11, 12, 13, 14]
print("After splitting:")
print(np.split(x, [2, 6])) 

Sample Output:

Original array: [ 1  2  3  4  5  6  7  8  9 10 11 12 13 14]            
After splitting:                                                       
[array([1, 2]), array([3, 4, 5, 6]), array([ 7,  8,  9, 10, 11, 12, 13,
 14])] 

Explanation:

x = np.arange(1, 15): This line creates a 1D array x containing the integers 1 to 14.

print(np.split(x, [2, 6])): The np.split() function is used to split the array x into multiple subarrays. The split indices are provided as a list [2, 6]. This means that the array x will be split into three subarrays: from the beginning to index 2 (exclusive), from index 2 to index 6 (exclusive), and from index 6 to the end.

Python-Numpy Code Editor:

Previous: Write a NumPy program to convert (in sequence depth wise (along third axis)) two 1-D arrays into a 2-D array.
Next: Write a NumPy program to split an of array of shape 4x4 it into two arrays along the second axis.

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