Manage Design Data
Assign variable values using model workspace, symbols, data objects, and data classes
You can use MATLAB® variables to configure and manage signals and block parameters in a model. For more information about how models use variables, see Symbol Resolution. To create, edit, and manage variables, see Create, Edit, and Manage Workspace Variables.
You can store model variables in the MATLAB base workspace, a model workspace, or a data dictionary. To decide where to store variables for your model, see Determine Where to Store Variables and Objects for Simulink Models.
To use variables to control signal and parameter characteristics, such as data types and code generation settings, you can store data objects in a workspace or data dictionary. See Data Objects.
|Analyze relationship between variables and blocks in models|
|Save workspace variables to MATLAB script|
|Evaluate MATLAB expression in context of Simulink model|
|Modify variable values in context of Simulink model|
|Check existence of variable in context of Simulink model|
|Create new data dictionary and create |
|Open data dictionary for editing|
|Return file names and paths of open data dictionaries|
|Clear library dictionary dependency analysis|
|Update library dictionary dependencies|
|Clear cached information on library dictionary links|
Manage External File Adapters
|List registered file adapters|
|Register custom file adapter|
|Unregister custom file adapter|
Objects and Variables
|Store information about workspace variables and blocks that use them|
|Store information about the relationship between variables and blocks in models|
|Specify information needed to generate code for signal, state, or parameter data|
|Configure data dictionary|
|Configure data dictionary section|
|Configure data dictionary entry|
|Store enumerated type definition in data dictionary|
External File Adapters
|Base class used to define file adapter for reading custom file formats|
|Contains data for external data source|
|Test custom external file adapter|
Data Storage in Model Workspace
- Model Workspaces
Place variables and objects that a model uses in a workspace that only the model can access.
- Change Model Workspace Data
When you store data in a model workspace, you choose a data source, such as the model file or an external MAT-file. To modify the variables at the source, you use a different procedure depending on the type of source that you selected.
- Specify Source for Data in Model Workspace
Store variables and objects that a model uses in the model file or in a separate file. Optionally, store the variables and objects as code that you can modify.
Data Storage in Dictionary
- What Is a Data Dictionary?
Use a data dictionary to store external data for a model.
- Import and Export Dictionary Data
Migrate data between a data dictionary and a MAT-file or MATLAB script file.
- View and Revert Changes to Dictionary Data
Use a data dictionary to inspect and manage changes to model data.
- Migrate Models to Use Simulink Data Dictionary
Store variables and objects in data dictionaries.
- Partition Dictionary Data Using Referenced Dictionaries
Create referenced dictionaries to store subsets of the data that a model or model hierarchy uses.
- Partition Data for Model Reference Hierarchy Using Data Dictionaries
Compose a dictionary hierarchy based on a model reference hierarchy.
- Attach Data Dictionary to Custom Libraries
Share data objects with Simulink block library users using attached data dictionary.
- Attach Data Dictionary to Subsystem Reference
Use a Simulink® data dictionary with child blocks and instances of your subsystem file.
- Enumerations in Data Dictionary
Store enumerated type definitions and enumerated data in a data dictionary.
- Store Data in Dictionary Programmatically
Use scripts and the command prompt to create and interact with data dictionaries.
Data Storage in Objects and Variables
- Determine Where to Store Variables and Objects for Simulink Models
Model data are objects and variables that you create in workspaces such as the base workspace or a data dictionary. Choose a technique to permanently store that data.
- Create, Edit, and Manage Workspace Variables
Workspace variables enable you to share information, such as parameter values and data types, between blocks and models. Use different tools and techniques to create and manipulate workspace variables.
- Edit and Manage Workspace Variables by Using Model Explorer
Find out which workspace variables are used by a model or block, find blocks that use a variable, find unused variables, and rename a variable everywhere it is used by blocks. Save and load variables from a separate file.
- Data Objects
Specify properties for parameters, signals, and states, including parameter values, outside of a block diagram by using external data objects.
- Symbol Resolution
You can control how blocks in a model resolve symbols to variables and objects that you create in workspaces.
- Define Data Classes
Customize the way your model interacts with data (signals, parameters, and states) by creating your own class of data object.
- Upgrade Level-1 Data Classes
Simulink no longer supports level-1 data classes. You must upgrade data classes that you created using the level-1 data class infrastructure, which was removed in a previous release.
Data Storage in External Files
- Create External File Adapter for Loading Variables into Simulink.SimulationInput Object
Define a custom file adapter that can be used by Simulink to load variables from an external file source into a