SUMMARY

Controls the plotting of null values.

SYNTAX

NULL {ON|OFF|value}

INPUT

ON:	Turns the NULL option on for plotting.
OFF:	Turns the NULL option off for plotting.
value:	Sets the value of a NULL to be value.

DEFAULT VALUES

NULL OFF

DESCRIPTION

Many times in a data set, when there are gaps in the data, no data is available. In many cases the data has been set to a predefined value. Typical values are 0.0, -1.0, -99. Usually the user will not want these values displayed on plots. The NULL command allows the user to define the NULL value and not connect a line through these data points. To set the NULL value to -1.0 and enable the NULL option during plotting:

SAC> NULL ON -1.0

LATEST REVISION

March 20, 1992 (Version 10.6e)