6. SIMPLE REGRESSION ANALYSIS


The Simple Regression Analysis software provides a convenient
method for producing linear regression-based forecasts of
CA MICS or user-computed data elements from capacity planning
database files.  This facility is designed to address two
requirements:

o Graphic presentations of historical data
o Simple regression-based forecasts of future values
o Optional Q&R formatted CSV files of forecast data

The plots can be produced either at the WEEKS, MONTHS, or
DAYS timespan, depending on the specifications that you made
in the File Definition Inquiry.  The plots can either be
formatted for a printer or for a color graphics device.
Printer graphics are always available, however, SAS/GRAPH is
a prerequisite for the color graphics option.

The Q&R formatted CSV files contain both the historical
(actual) and forecasted values of the data element chosen for
analysis. This data can be subsequently downloaded to a PC
workstation and used for additional analysis and presentation
using the CA MICS Q&R product.

Note: SAS/STAT is a prerequisite for using Simple Regression
Analysis.

The following sections describe Simple Regression Analysis
operation and its reports.

This section contains the following topics:

6.1 Functional Description

6.2 Usage Guidelines

6.3 Standard Output

6.4 Analytic Technique Tutorial

6.5 Component Operation

6.6 Case Studies