Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
IBM SPSS Modeler Essentials

You're reading from   IBM SPSS Modeler Essentials Effective techniques for building powerful data mining and predictive analytics solutions

Arrow left icon
Product type Paperback
Published in Dec 2017
Publisher Packt
ISBN-13 9781788291118
Length 238 pages
Edition 1st Edition
Concepts
Arrow right icon
Authors (2):
Arrow left icon
Keith McCormick Keith McCormick
Author Profile Icon Keith McCormick
Keith McCormick
Jesus Salcedo Jesus Salcedo
Author Profile Icon Jesus Salcedo
Jesus Salcedo
Arrow right icon
View More author details
Toc

Data Audit node options


When data is first read into Modeler, it is important to check the data to make sure it was read correctly. Typically, using a Table node can help you get a sense of the data and inform you of some potential issues that you may have. However, the Data Audit node is a better alternative to using a Table node, as it provides a more thorough look at the data.

Before modeling takes place, it is important to see how records are distributed within the fields in the dataset. Knowing this information can identify values that, on the surface, appear to be valid, but when compared to the rest of the data are either out of range or inappropriate. Let's begin by opening a stream that has the modifications we made in the previous chapter:

  1. Open the Data Quality and Exploration stream.

Note

This simple stream contains the Demographic data file that has been linked to the Var. File source, along with the modifications we previously made in the Types tab. In order for this stream to function...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image