Longitudinal Data and SAS

5   Summarizing Data Using PROC MEANS and PROC FREQ

Introduction

Using PROC MEANS to Output Means to a Data Set

Comparing CLASS and BY Statements with PROC MEANS

Computing Other Descriptive Statistics

Automatically Naming the Variables in the Output Data Set

Demonstrating an Alternative Way to Select Specific Descriptive Statistics for Selected Variables

Adding Additional Variables to the Summary Data Set Using an ID Statement

Specifying More Than One CLASS Variable

Selecting Multi-Way Breakdowns Using the TYPES Statement

Using the PROC MEANS CHARTYPE Option to Simplify the _TYPE_ Interpretation

Comparing PROC MEANS and PROC FREQ for Creating an Output Data Set Containing Counts

Counting Frequencies for a Two-Way Table

Introduction

Suppose you ...