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Write a Python program to shuffle all the elements in a given series
Assume, you have a dataframe and the result for shuffling all the data in a series,
The original series is 0 1 1 2 2 3 3 4 4 5 dtype: int64 The shuffled series is : 0 2 1 1 2 3 3 5 4 4 dtype: int64
Solution 1
Define a series.
Apply random shuffle method takes series data as an argument and shuffles it.
data = pd.Series([1,2,3,4,5]) print(data) rand.shuffle(data)
Example
Let’s see the below code to get a better understanding −
import pandas as pd
import random as rand
data = pd.Series([1,2,3,4,5])
print("original series is\n",data)
rand.shuffle(data)
print("shuffles series is\n",data)Output
original series is 0 1 1 2 2 3 3 4 4 5 dtype: int64 shuffles series is 0 2 1 3 2 1 3 5 4 4 dtype: int64
Solution 2
Define a series.
Create for loop to access series data and generate random index in j variable. It is defined below,
for i in range(len(data)-1, 0, -1): j = random.randint(0, i + 1)
Swap data[i] with the element at random index position,
data[i], data[j] = data[j], data[i]
Example
Let’s see the below code to get a better understanding −
import pandas as pd
import random
data = pd.Series([1,2,3,4,5])
print ("The original series is \n", data)
for i in range(len(data)-1, 0, -1):
j = random.randint(0, i + 1)
data[i], data[j] = data[j], data[i]
print ("The shuffled series is : \n ", data)Output
The original series is 0 1 1 2 2 3 3 4 4 5 dtype: int64 The shuffled series is : 0 2 1 1 2 3 3 5 4 4 dtype: int64
Updated on: 24-Feb-2021
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