Chapter 1: Data Management in the Analytics Process
Asking Questions that Data Can Help to Answer
Combining and Reconciling Multiple Sources
Identifying and Addressing Data Issues
Data Requirements Shaped by Modeling Strategies
Introduction
Although reliable estimates are difficult to come by, there seems to be consensus that data preparation—locating, assembling, reconciling, merging, cleaning, and so on—consumes something like 80% of the time required for a statistical project (Press 2016). In comparison to the literature about building statistical models and performing analysis, there are relatively few books written on the topic ...
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