December 2017
Beginner to intermediate
238 pages
5h 35m
English
Content preview from IBM SPSS Modeler Essentials
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The Optimization tab
The Optimization tab provides two options that allow you to merge data more efficiently when one input dataset is significantly larger than the other datasets, or when the data is already presorted by all or some of the key fields that you are using to merge:
- Click OK.
- Run the Table:
All of these files have now been combined. The resulting table should have 44 fields and 143,531 records.
In this chapter, all the combined data sources had a similar file structure in that one person defined a case. Thus the data is at the person level. Often, though, a person does not define cases. For example, purchase data is often held ...
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