random module is used to generate random numbers in Python. Not actually random, rather this is used to generate pseudo-random numbers. That implies that these randomly generated numbers can be determined.
random.paretovariate()
paretovariate() is an inbuilt method of the random module. It is used to return a random floating point number with Pareto distribution.
Syntax : random.paretovariate(alpha) Parameter : alpha : shape parameter Returns : a random Pareto distribution floating numberExample 1:
# import the random module
import random
# determining the values of the parameter
alpha = 3
# using the paretovariate() method
print(random.paretovariate(alpha))
1.0333528834896462Example 2: We can generate the number multiple times and plot a graph to observe the Pareto distribution.
# import the required libraries
import random
import matplotlib.pyplot as plt
# store the random numbers in a
# list
nums = []
alpha = 3
for i in range(100):
temp = random.paretovariate(alpha)
nums.append(temp)
# plotting a graph
plt.plot(nums)
plt.show()
Example 3: We can create a histogram to observe the density of the Pareto distribution.
# import the required libraries
import random
import matplotlib.pyplot as plt
# store the random numbers in a list
nums = []
alpha = 3
for i in range(10000):
temp = random.paretovariate(alpha)
nums.append(temp)
# plotting a graph
plt.hist(nums, bins = 200)
plt.show()
Output :
