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Data Cleaning and Exploration in Python

Learn how to identify and correct errors in categorical variables, eliminate sparse classes, and visualize distributions. Remove unwanted observations, identify and eliminate null values in a dataset.

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24 Lessons (33m)

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1. Data Cleaning Learning Objectives

00:30
2. The Machine Learning Process

02:02
3. Matplotlib and Seaborn

00:45
4. Errors in Stock Data Dataset

01:24
5. Matplotlib and Seaborn Workout

01:46
6. Countplot

01:21
7. Countplot Workout

01:57
8. Replace and Sparse Classes

03:01
9. Replace Workout

01:55
10. Sparse Classes Workout

02:14
11. Spotting Outliers

01:08
12. Spotting Outliers Workout 1

01:31
13. Spotting Outliers Workout 2

01:23
14. Spotting Outliers Workout 3

01:15
15. Spotting Outliers Workout 4

01:38
16. Summary Statistics Workout

00:47
17. NaN Object

02:10
18. NaN Object Workout

01:02
19. Dropping Null Values

00:32
20. Dropping Null Values Workout

00:45
21. Box Plots

00:52
22. Box Plots Workout

01:17
23. Saving Your Data Frame

00:52
24. Data Cleaning and Exploration Review

00:31

Next: Regression Algorithms in Python

Errors in Stock Data Dataset

Notes
Questions

01:24

Why identifying and correcting errors in data sets for machine learning projects is important, and how the quality of data directly impacts the effectiveness of machine learning models.

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Glossary

Dataset Errors Machine Learning Python

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CPE

What is CPE?

CPE stands for Continuing Professional Education, by completing learning activities you earn CPE credits to retain your professional credentials. CPE is required for Certified Public Accountants (CPAs). Financial Edge Training is registered with the National Association of State Boards of Accountancy (NASBA) as a sponsor of continuing professional education on the National Registry of CPE Sponsors.

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For self study programs, 1 CPE credit is awarded for every 50 minutes of elearning content, this includes videos, workouts, tryouts, and exams.

CPE Exams

You must complete the CPE exam within 1 year of accessing a related playlist or course to earn CPE credits. To see how long you have left to complete a CPE exam, hover over the locked CPE credits button.

What if I'm not collecting CPE credits?

CPE exams do not count towards your FE certification. You do not need to complete the CPE exam if you are not collecting CPE credits, but you might find it useful for your own revision.

Further Help

Felix How to Guide walks you through the key functions and tools of the learning platform.
Playlists & Tryouts: Playlists are a collection of videos that teach you a specific skill and are tested with a tryout at the end. A tryout is a quiz that tests your knowledge and understanding of what you have just learned.
Exam: If you are collecting CPE points you must pass the relevant CPE exam within 1 year to receive credits.
Glossary: A glossary can be found below each video and provides definitions and explanations for terms and concepts. They are organized alphabetically to make it easy for you to find the term you need.
Search function: Use the Felix search function on the homepage to find content related to what you want to learn. Find related video content, lessons, and questions people have asked on the topic.
Closed Captions & Transcript: Closed captions and transcripts are available on videos. The video transcript can be found next to the closed captions in the video player. The transcript feature allows you to read the transcript of the video and search for key terms within the transcript.
Questions: If you have questions about the course content, you will find a section called Ask a Question underneath each video where you can submit questions to our expert instructor team.