Trigger is a property of an
Trigger is a condition that must become
true for an event to execute. You can use a combination of relational
and logical operators to build a trigger expression.
be a character vector, an expression, or a function handle that when
evaluated returns a value of
Trigger can access species, parameters, and compartments.
A trigger can contain the keyword
relational operators to trigger an event that occurs at a specific
time during the simulation. For example,
time >= x.
In this example trigger, note that:
The units associated with the keyword
the units for the
TimeUnits property for the
associated with the simulation.
x is an expression containing
compartments, species, or parameters, then any units associated with
the expression must have the same dimensions as the keyword
x is a raw number, then its
dimensions (and units, if unit conversion is on) are assumed to be
the same as the keyword
Non-dimensionalize any parameters used in the event
|Applies to||Object: |
|SimBiology type||Character vector, function handle|
Specify a MATLAB® expression as a character vector.
Create a model object, and then add an event object.
modelObj = sbmlimport('oscillator'); eventObj = addevent(modelObj, 'time>= 5', 'OpC = 200');
Trigger property of the
set(eventObj, 'Trigger', '(time >=5) && (speciesA<1000)');