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Python for Basic Data Analysis

Start your data science journey with Python. Learn practical Python programming skills for basic data manipulation and analysis.

Finding unique elements in an array

Finding unique elements in an array

np.unique lets you find out the unique elements of an array. 

Sorting elements in arrays

Sorting elements in arrays

np.sort enables you to sort the elements in your array.

It can be used as a function of NumPy or as a method which will both create the same results. Below are examples of both methods. 

When used as a function, the original array does not change. When used as a method, the original array also changes. 

Sort by rows or columns

You can also sort the elements in rows or columns of a matrix by specifying the axis. 

Video Guides

Exercises

1. Find the unique elements in this array:

myArray_1 = np.array([[2,2,3,4],[3,2,3,4]])

 

2. Sort the elements in this array by its rows:

myArray_2 = np.array([[2,3,1,4],[7,5,6,8]])

1. Find the unique elements in this array:

myArray_1 = np.array([[2,2,3,4],[3,2,3,4]])


2. Sort the elements in this array by its rows:

myArray_2 = np.array([[2,3,1,4],[7,5,6,8]])