Equation functions and variables

You can use equations, functions, and variables for analysis. This table shows a brief description of the global variables:


Global Variable	Description
`_OBJECTKEY`	The key of the current analysis object
`_ANALYSISROWTAG`	The current row tag
`_ANALYSISDAILYVALUERULE`	The default Daily Value Rule from the Analysis form.
`_ANALYSISDEGRADATIONRULE`	The default Degradation Rule from the Analysis form
`_ANALYSISRNDRULE`	The default Rounding Rule from the Analysis form
`_ANALYSISSHELFLIFE`	The default Shelf Life from the Analysis form
`_ANALYSISPARAM`	The current technical parameter
`_ANALYSISCURRLOOP`	Returns the current iteration. To control the looping, specify a value. -1 = Finish processing the current “i-turn”. Stop even if the Upper Iteration limit has not be reached. -2 = Do not process the current parameter for the remainder of the Calc event.
`_ANALYSISERRSUPPRESS`	Suppresses the error message. It is suppressed when the equation refers to a RowTag has not been calculated yet. 1 = Suppress error message for the remainder of the calc event 0 = enable error message. This is the default value.
`_SOURCECHANGED`	Checks whether source data has been changed. 1 = Source data has been changed. 0 = Source data has not been changed.

_SOURCECHANGED example

This script shows an example of how to use this variable.

If 
_SOURCECHANGED = 1 Then
   Messagelist("Source data changed");
endif
If
 _SOURCECHANGED = 0 Then
	  Messagelist("Source data not changed");
endif