Using the Plot Feature › Understanding the Plot Feature › Understanding the Elements of a Graph

Understanding the Elements of a Graph

The graphs that you draw with the Plot feature contain these elements:

• An optional title
• An X axis (horizontal) and a Y axis (vertical)
• Optional labels for the X and Y axes
• Lines or bars representing system information
• Optional tick marks quantifying the information indicated with lines or bars

A sample graph displaying the JES SPOOL usage for several systems over a 24-hour period is shown next. The sample application containing the PLOT statements necessary for creating the graph is available in the sample directory; see the SPLPLOTX.txt file for more information.

Most of the examples in the remainder of this chapter show actual PLOT commands for setting up or modifying the data in the SPLPLOT graph.