This document explains and demonstrates the use of automatic FIRST. and LAST. variables in the SAS DATA step for processing BY groups. It shows how these variables signal the beginning and end of groups, how they are affected by sort order, and ho...
This document provides examples illustrating the use of the WHERE clause to c...
This document presents examples of using the UPDATE statement in SAS to modif...
This document provides examples illustrating how to process BY groups (BY-Gro...
This document provides examples of match-merging SAS datasets using the MERGE...
This document presents examples of using the MERGE statement without the BY s...
This document provides SAS code examples for controlling variables and observ...
This example uses three PROC CASUTIL statements to load, partition, and modif...
This example shows how to use the FIRSTOBS= and OBS= data set options with th...
This example illustrates the use of a hash table to merge two SAS datasets (o...
A SAS dataset is a collection of tabular data in a SAS file format, containin...
This document explains how to execute a SAS DATA step program in single-threa...
This document explains how to group variables in descending order using the D...