Difference between revisions of "Running Your Model"

From Nova Documentation
Jump to: navigation, search
(Clock Settings)
Line 2: Line 2:
  
 
==Clock Settings==
 
==Clock Settings==
Once you have built a model, you must first set the clock parameters before you can run the model.
+
Once you have built a model but before you run it as a simulation, you must first set the clock parameters.
 
The clock settings consist of the following 4 parameters:
 
The clock settings consist of the following 4 parameters:
 
*'''Start''' The time (in model time) when the simulation starts (this is usually 0).
 
*'''Start''' The time (in model time) when the simulation starts (this is usually 0).
 
*'''End''' The time (in model time) when the simulation ends.
 
*'''End''' The time (in model time) when the simulation ends.
 
*'''Dt''' The unit of increment (in model time) for updates.
 
*'''Dt''' The unit of increment (in model time) for updates.
*'''Integration Method'''  
+
*'''Integration Method''' The mathematical algorithm used to update Stocks and Variables.
 +
 
 +
Nova currently uses an abstract unit of time that represents some model-dependent real time unit (seconds, minutes, hours, days, years).
 +
 
 +
'''Dt''', the increment, or "delta t", value, is the amount of time that elapses between State updates. For discrete models this is usually 1 (see below), but can be any value (0.1, 0.01, 0.05, 2, 20).
 +
 
 +
Nova supports 3 different integration methods
 +
 
 
==Run Buttons==
 
==Run Buttons==
  

Revision as of 17:35, 10 January 2015

This section describes how you run a model built with Nova's visual interface.

Clock Settings

Once you have built a model but before you run it as a simulation, you must first set the clock parameters. The clock settings consist of the following 4 parameters:

  • Start The time (in model time) when the simulation starts (this is usually 0).
  • End The time (in model time) when the simulation ends.
  • Dt The unit of increment (in model time) for updates.
  • Integration Method The mathematical algorithm used to update Stocks and Variables.

Nova currently uses an abstract unit of time that represents some model-dependent real time unit (seconds, minutes, hours, days, years).

Dt, the increment, or "delta t", value, is the amount of time that elapses between State updates. For discrete models this is usually 1 (see below), but can be any value (0.1, 0.01, 0.05, 2, 20).

Nova supports 3 different integration methods

Run Buttons

Timeline

Automode

IMode