6. SIMPLE REGRESSION ANALYSIS › 6.6 Case Studies › 6.6.1 Extended Example I/O Workload Analysis › 6.6.1.2 Control Parameters
6.6.1.2 Control Parameters
Figure 6-6 shows the screen containing the control parameters
that are provided to Simple Regression Analysis.
/------------------------ Simple Regression Analysis -------------------------\
| Command ===> |
| |
|Composing CA MICS Inquiry: CHNSMR - Simple Regression of Channel Util. |
| |
|Report title ===> EXTENDED EXAMPLE |
| |
|Selection criteria: |
| Input file ===> CHN |
| Start date ===> _________ (ddmonyyyy) |
| SYSID ===> TSO1 |
| Zone ===> _________ |
| No. months ===> ____ (1-9999) |
| Specify CAPAPU Values ===> _ (Y/N) |
| |
|Plot title ===> CHANNEL 1SIO COUNT VS MONTH_____________ |
|Forecast data element ===> CHAN1CNT |
|Axis label ===> CHANNEL 1 SIO COUNT |
|Forecast length (weeks) ===> 6 (1-9999) |
| |
|Plot type ===> PRINTER (COLOR/PRINTER) |
|Specify color graphics parms===> N (Y/N/R) |
| Color graphics format set ===> PENPLOT |
| |
\------------------------------------------------------------------------------/
Figure 6-6. Extended Example Control Parameters
Report title: The title that appears on the resulting graph.
Input file: The CHN resource element file that was
originally defined in the extended example in
Section 3.3.3.1 of this guide.
Start date The start date for date range selection.
Since neither a start date nor a number of
days, weeks or months are specified for this
analysis, no date range selection is applied to
the historical observations from the CHN
resource element file.
SYSID: Historical observations only for SYSID TSO1.
Zone: The summary level selection criteria for the
analysis. Since the CHN resource element file
was defined in Section 3.3.3.1 at the ZONE
summary level, this parameter specifies that
only historical observations for ZONE 1 are
included in the analysis.
No. months: The maximum number of days, weeks, or months
that will be included in the analysis.
Specify Put a Y in this field to specify the CAPAPU
CAPAPU value to be included in the analysis. The
values: CAPAPU value is specified on the CAPAPU
Selection Values screen, shown in Figure 6-4,
that appears if you enter a Y in this field.
You may specify it only if the capacity
planning database file is defined as containing
the CAPAPU data element.
Plot Title: An optional second title line for the reports
if needed. This is a 40-character field and
no double quotes (") may appear within the
body of the title.
Forecast The name of the data element (CHAN1CNT) in the
data capacity planning resource file which contains
element: SIO counts for channel 1.
Axis label: The label for the X-axis. Since the axis label
was left blank, the online facility
automatically filled it with the label of the
data element, CHANNEL 1 SIO COUNT.
Forecast The length of the forecast observation. Six is
length: selected as a conservative number of estimates
to be made from the 12 historical observations
that are contained in the CHN resource element
file.
Plot type: The specification for the type of plot to be
used. For this example, PRINTER is selected
for a line printer plot.
Executing the analysis produces the plot report for the
Channel 1 SIO counts shown in Section 6.6.1.3.
By modifying screen entries, then executing each
modification, it is possible to quickly request forecasts of
SIO counts and channel busy for each of the channels. These
forecasts produce reports similar in format to the one shown,
so they will not be presented here.
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