3. Reports and Graphics › 3.1 Graphics › 3.1.12 Stacked Plots

3.1.12 Stacked Plots

Users  |                              ++++++     +          +
   200 +                       +     +   *  +   + +    +   + +
       |                      + +   +   * *  + +  *+  * + + * +
       |                 +   +   + +   *   *  +  * *+* * + * * +
   150 +                + + +     +   *     *   *   *   * *   * +
       |               +   +         *       * *         *     * +
       |              +   *     *   *         *                 *
   100 +         +   +   * *   * * *                             *
       |        + + +   *   * *   *                               *
       |       + * +   *     *                                     *
    50 +  +   + * *   *                                             *
       |  *+ + *   * *
       | * *+ *     *
     0 +*    *
       -+---------+---------+---------+---------+---------+---------+
       6:00      8:00     10:00     12:00     14:00     16:00     18:00
                                     Time of Day

                        TYPE   ***  Average   +++  Maximum

Figure 3-12.  Sample Stacked Plot

Stacked plots are multiple plots (for example, y against x
and z against x) on a single axis and scale.  Up to four
variables can be plotted against a fifth variable.  Stacked
plots also generate a legend for the Y-axis variables.  Use
stacked plots to illustrate the relationships among multiple
variables that are influenced by a single independent
measure, such as the relationship between average concurrent
TSO users and maximum concurrent TSO users by hour.  You can
also stack values.  For example, you might stack messages
received over messages sent to show both total message
traffic and its component parts.

You can control the color and content of the chart axis
scale, data element labels, and printed value formats.  You
can leave the points unconnected or you can connect the
points with straight lines, a smooth curve, or a step
function.  You can specify the format of these lines (for
example, dotted, solid, etc.), the symbol used to plot each
point, and the color of any item presented on the plot.  You
can choose to plot only the connecting line and/or to fill
the area under the lines or the area between the lines with a
pattern, a color, or both.

Figure 3-12 is a sample stacked plot showing the average and
maximum number of concurrent TSO users by time of day.

To create a stacked plot, select the Stacked Plot option from
either of the following menus:

o  Direct Inquiry Color Graphics Color Plot Menu
o  Structured Inquiry Color Graphics Color Plot Menu

Note that stacked plots are only available in color.  This
sample report simulates the basic format of a color stacked
plot.