SimBiology®

Rule - Specify species and parameter interactions

Description

The Rule property contains a rule that defines how certain species and parameters should interact with one another. For example, a rule could state that the total number of species A and species B must be some value. Rule is a MATLAB^® expression that defines the change in the species object quantity or a parameter object Value when the rule is evaluated.

You can add a rule to a model object with the addrule method and remove the rule with the delete method. For more information on rules see addrule, and RuleType.

Characteristics

Example

1. Create a model object, then add a reaction object

   modelObj = sbiomodel ('my_model');
   reactionObj = addreaction (modelObj, 'a + b -> c + d');

2. Add a rule

   ruleObj = addrule(modelObj, '10-a+b')

   MATLAB returns

   SimBiology Rule Array
   
   Index:    RuleType:    Rule:
   1         algebraic    10-a+b

See Also

addrule, delete, sbiorule

Reversible

RuleType