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Python Pandas Exercises

Pandas Practice Set-1: Drop a row if any or all values in a row are missing of diamonds DataFrame on two specific columns

Pandas Practice Set-1: Exercise-42 with Solution

Write a Pandas program to set an existing column as the index of diamonds DataFrame.

Sample Solution:

Python Code:

import pandas as pd
diamonds = pd.read_csv('https://raw.githubusercontent.com/mwaskom/seaborn-data/master/diamonds.csv')
print("Original Dataframe:")
print(diamonds.head())
print("\nAfter droping those rows where any value in a row is missing in carat and cut columns:")
print(diamonds.dropna(subset=['carat', 'cut'], how='any').shape)
print("\nAfter droping those rows where all values in a row are missing in carat and cut columns:")
print(diamonds.dropna(subset=['carat', 'cut'], how='all').shape)

Sample Output:

Original Dataframe:
   carat      cut color clarity  depth  table  price     x     y     z
0   0.23    Ideal     E     SI2   61.5   55.0    326  3.95  3.98  2.43
1   0.21  Premium     E     SI1   59.8   61.0    326  3.89  3.84  2.31
2   0.23     Good     E     VS1   56.9   65.0    327  4.05  4.07  2.31
3   0.29  Premium     I     VS2   62.4   58.0    334  4.20  4.23  2.63
4   0.31     Good     J     SI2   63.3   58.0    335  4.34  4.35  2.75

After droping those rows where any value in a row is missing in carat and cut columns:
(53940, 10)

After droping those rows where all values in a row are missing in carat and cut columns:
(53940, 10)

Python Code Editor:


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Next: Write a Pandas program to set an existing column as the index of diamonds DataFrame.

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