Introduction to Using More Than One Observation in a Calculation

Purpose

In this section, you will learn about calculations that require more than one observation. The following types of examples are included in this section:
  • accumulating a total across a data set or a BY group
  • saving a value from one observation in order to compare it to a value in a later observation

Prerequisites

Before proceeding with this section, you should understand the concepts presented in the following sections:
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