Limit data points

Option to limit number of logged data points

Model Configuration Pane: Simscape

Description

Specify that the number of data points logged to workspace is limited to the value corresponding to the number of simulation steps specified by the Data history (last N steps) parameter.

Dependencies

To enable the Limit data points parameter, set the Log simulation data parameter to All or Use local settings.

Settings

on (default) | off

On: Limits the number of data points exported to workspace to those for the number of steps specified by the Data history (last N steps) parameter.
Off: Does not limit the number of data points. The simulation log variable contains the data points for the whole simulation, at the price of slower simulation speed and heavier memory consumption.

Tips

Saving data to workspace can slow down the simulation and consume memory. Use this parameter to limit the number of data points saved.
Another way to limit the number of data points saved is using the Decimation parameter. The two methods work independently from each other and can be used separately or together.
You must select the Limit data points check box before specifying the number of steps in the Data history (last N steps) parameter.
An alternative way to reduce memory consumption is to enable data streaming to disk, as described in Stream Logging Data to Disk.
The Output options parameter, under Additional parameters on the Data Import/Export pane of the Configuration Parameters dialog box, also affects which data points are logged.

Recommended Settings

Application	Setting
Debugging	No Impact
Traceability	No Impact
Efficiency	On
Safety precaution	No Impact

Programmatic Use

Parameter: SimscapeLogLimitData

Type: character vector | string scalar

Value: 'on' | 'off'

Default: 'on'

Version History

Introduced in R2010a