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Considerations for the INPUT, SELECT, SORT, BREAK, TITLE, and HEADING statements are the same as for previous examples. The other statements function as follows:
The COMPUTE statements are used in this report to simplify the data being graphed. Work fields TAPE PLOT, DISK PLOT, and TOTAL PLOT are created. They store the tape, disk, and total I/O counts for a job divided by 100. Consequently, when the work fields are graphed the graphs are in hundreds of I/Os.
LIST identifies what data fields to print, as shown in previous examples. In addition, this example uses the (Gn) suffix code to invoke the plot feature. The suffixes (G1), (G2), and (G3) after TAPE PLOT, DISK PLOT, and TOTAL PLOT respectively, specify that these fields are to be printed in plot form. The plot format is described by a PLOT statement. CA JARS Wizard relates the (Gn) suffix with any user-defined PLOT statements. In this case, G1, G2, and G3 are defined in PLOT statements. If a Gn is specified in the LIST statement but the no corresponding PLOT statement is given, CA JARS Wizard uses system default specifications.Refer to the description of the PLOT statement below.
The PLOT statements describe the format of three different plots: TAPE PLOT, DISK PLOT, and TOTAL PLOT. In this example all PLOT statements indicate that the plot is to be in increments of 10 for a length of 25 increments (total of 250 x 100 I/Os). Other options on a PLOT statement can specify the range and the character to be used for plotting. See the PLOT statement description in the "Control Statements" chapter for further information.
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