Skip to Content
Data Insight Foundations: Step-by-Step Data Analysis with R
book

Data Insight Foundations: Step-by-Step Data Analysis with R

by Nikita Tkachenko
March 2025
Beginner to intermediate
222 pages
5h 46m
English
Apress
Content preview from Data Insight Foundations: Step-by-Step Data Analysis with R
© Nikita Tkachenko 2025
N. TkachenkoData Insight Foundationshttps://doi.org/10.1007/979-8-8688-0580-6_4

4. Data Validation

Nikita Tkachenko1  
(1)
San Francisco, USA
 

Data validation is a crucial part of data analysis, encompassing the maintenance of data integrity, accuracy, and cleanliness for computational tasks. Since the results of analysis are heavily dependent on the quality of the input data, having a robust validation process is essential. A lack of such a process can lead to the effect of “Garbage in, garbage out.”

Imagine dedicating hours to an analysis only to discover a duplicate row or sporadic NAs. The key to avoid such scenarios lies in regular data checks. You can write a function to perform these checks or set up data validation pipelines ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services
QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Behavioral Data Analysis with R and Python

Behavioral Data Analysis with R and Python

Florent Buisson
Statistics for Data Science and Analytics

Statistics for Data Science and Analytics

Peter C. Bruce, Peter Gedeck, Janet Dobbins
Statistical Analysis with R For Dummies, 2nd Edition
Data Visualization in R and Python

Publisher Resources

ISBN: 9798868805806