random.triangular() method in Python
Last Updated :
17 May, 2020
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triangular() is an inbuilt method of the random module. It is used to return a random floating point number within a range with a bias towards one extreme.
Syntax : random.triangular(low, high, mode) Parameters : low : the lower limit of the random number high : the upper limit of the random number mode : additional bias; low < mode < high if the parameters are (10, 100, 20) then due to the bias, most of the random numbers generated will be closer to 10 as opposed to 100. Returns : a random floating numberExample 1:
# import the random module
import random
# determining the values of the parameters
low = 10
high = 100
mode = 20
# using the triangular() method
print(random.triangular(low, high, mode))
22.614510550239572Example 2: If we generate the number multiple times we can probably identify the bias.
# import the random module
import random
# determining the values of the parameters
low = 10
high = 100
mode = 20
# running the triangular method with the
# same parameters multiple times
for i in range(10):
print(random.triangular(low, high, mode))
58.645768016894735 46.690692250503226 33.57590419190895 52.331804090351305 33.09451214875767 12.03845752596168 32.816080679206294 20.4739124559502 82.49208123077557 63.511062284733015Example 3: We can visualize the triangular pattern by plotting a graph.
# import the required libraries
import random
import matplotlib.pyplot as plt
# store the random numbers in a list
nums = []
low = 10
high = 100
mode = 20
for i in range(10000):
temp = random.triangular(low, high, mode)
nums.append(temp)
# plotting a graph
plt.hist(nums, bins = 200)
plt.show()
