Create Pandas Series using NumPy functions

A Pandas Series is like a one-dimensional array which can store numbers, text or other types of data. NumPy has built-in functions that generate sequences, random values or repeated numbers In this article, we'll learn how to create a Pandas Series using different functions from the NumPy library.

Method 1: Using numpy.linspace()

The linspace() function creates a list of evenly spaced numbers from start to stop with num total values. It's used when you want to divide a range into equal parts.

import numpy as np
import pandas as pd 

ser1 = pd.Series(np.linspace(3, 33, 3))
print(ser1)

ser2 = pd.Series(np.linspace(1, 100, 10))
print("\n", ser2)

Output:

Method 2: Using np.random.normal and np.random.rand()

These functions are used when you want to create random test data.

• random.normal() gives random numbers from a normal distribution. You can set the average, standard deviation and how many values to generate.
• random.rand gives random numbers between 0 and 1 with a uniform distribution.

import pandas as pd
import numpy as np

ser3 = pd.Series(np.random.normal())
print(ser3)


ser4 = pd.Series(np.random.normal(0.0, 1.0, 5))
print("\n", ser4)

ser5 = pd.Series(np.random.rand(10))
print("\n", ser5)

Output:

The first output is a single random number from a normal distribution. The second output shows five random float numbers also from a normal distribution. The third output has ten random numbers between 0 and 1 generated from a uniform distribution.

Method 3: Using numpy.repeat()

The numpy.repeat() function repeats a specific value multiple times. It's used when you need to create a Series with the same value repeated.

import pandas as pd 
import numpy as np 
  
ser = pd.Series(np.repeat(0.08, 7)) 
print("\n", ser) 

Output:

In the above output we can see that 0.08 is repeating 8 times. With these methods we can easily create pandas series using Numpy.