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Simulink.data.dataSource.hasSource

Determine if specified external data source is associated with model

Since R2024b

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Syntax

tf = Simulink.data.dataSource.hasSource(modelName,nameOfExternalSource)

Description

tf = Simulink.data.dataSource.hasSource(modelName,nameOfExternalSource) checks whether a specified external data source, such as a MAT file or a data dictionary, is currently associated with the Simulink® model or Subsystem File specified by modelName.

example

Examples

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Determine if the external data source BasicModellingDataDefinitions.mat is added to the model BasicModellingData.

isAttached = Simulink.data.dataSource.hasSource("BasicModellingData","BasicModellingDataDefinitions.mat")
isAttached = 

logical
    1

Determine if the external data source myDictionary.sldd is added to the Subsystem File SSREF1.

isAttached = Simulink.data.dataSource.hasSource("SSREF1","myDictionary.sldd")
isAttached = 

logical
    0

Input Arguments

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Path or handle of a model or subsystem file, specified as a character vector or string.

Example: "myModel"

Data Types: char | string

Name of the external data source, specified as a character vector or string. Data source can be a MAT file or a data dictionary.

  • MAT file — Name of MAT file, including file extension

  • Data dictionary — Name of data dictionary, including file extension

Example: "myMatFile.mat"

Example: "myDictionary.sldd"

Data Types: char | string

Output Arguments

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True or false result, returned as 1 or 0 of data type logical.

Alternatives

Use Model Explorer to navigate to the External Data tab. Under Additional data sources, you can check for the data source.

Version History

Introduced in R2024b

See Also

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