MATLAB: Is it possible to do a find and replace in Simulink models in Simulink 6.4.1 (R2006a+)

simulink

With Edit > Find option it is possible to search a Simulink model for a particular expression. It is however not possible to do a find and replace. This would be convenient if I have to change a name which appears in several occurences in the model etc.

Best Answer

The ability to find and replace text in a Simulink model is not available in Simulink 6.4.1 (R2006a+).

Use find_system along with get_param/set_param

Related Solutions

MATLAB: Finding Simulink block by sample time

try this:

find_system(gcs, 'FindAll', 'on', 'SampleTime', 'inf')

where gcs means get current system and could also be replaced with the model name.

MATLAB: How to profile block or mask initialization times in Simulink 6.4.1 (R2006a+)

Currently there is no direct way to view initialization time costs in Simulink.

As a workaround, you can utilize the MATLAB Profiler along with the Simulink update diagram to obtain this information. An example is attached.

The attached profile_model.mdl has two masked subsystems. The first one, profile_model/Subsystem, has a mask initialization command that calls the mywrapperfunction.m:

mywrapperfunction(1)

This MATLAB file executes a simple PAUSE command. This command is one second long, so it will stand out from the rest of the update calculations. profile_script.m contains:

clear all
open_system('profile_model')
profile on
set_param('profile_model','SimulationCommand','update')
profile off
profile viewer

These are the steps to update the model and profile via the command line. This utilizes MATLAB to open the model, update the model, and profile the update action. The results will show mywrapperfunction as the most expensive calculation in the update diagram call (see attached profile_screenshot.jpg).

Note the first run of profile_script.m may produce a slightly different run than the screen shot. In any case, mywrapperfunction should be the most expensive calculation.

Also note that currently there is no way to map the MATLAB functions back to a particular block mask initialization.

Best Answer

Related Solutions

MATLAB: Finding Simulink block by sample time

MATLAB: How to profile block or mask initialization times in Simulink 6.4.1 (R2006a+)

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