Title: Find The Maximum And Minimum Slug: find_maximum_and_minimum
Summary: How to find the maximum, minimum, and average of the elements in an array.
Date: 2017-09-03 12:00
Category: Machine Learning
Tags: Vectors Matrices Arrays
Authors: Chris Albon

Preliminaries



In [8]:

    
# Load library
import numpy as np

Create Matrix



In [9]:

    
# Create matrix
matrix = np.array([[1, 2, 3],
                   [4, 5, 6],
                   [7, 8, 9]])

Find Maximum Element



In [10]:

    
# Return maximum element
np.max(matrix)









    Out[10]:





9

Find Minimum Element



In [11]:

    
# Return minimum element
np.min(matrix)









    Out[11]:





1

Find Maximum Element By Column



In [13]:

    
# Find the maximum element in each column
np.max(matrix, axis=0)









    Out[13]:





array([7, 8, 9])

Find Maximum Element By Row



In [14]:

    
# Find the maximum element in each row
np.max(matrix, axis=1)









    Out[14]:





array([3, 6, 9])