Using Simulink

Inheriting Argument Data Types

You can tell an Embedded MATLAB Function block to inherit the data type of an argument from Simulink by selecting inherited in the Type field for that data. In this case, the argument inherits its data type, including fixed-point types, from the Simulink signal that is connected to it. See Selecting Types for Arguments for a list of supported data types.

Note    An argument can also inherit its complexity (i.e., whether its value is a real or complex number) from the Simulink signal that is connected to it. To cause an argument to inherit its complexity, set the Complexity control on the argument's dialog box to inherited.

Once you build the model, the CompiledType column of the Model Explorer gives the actual type used in the compiled simulation application. To conveniently compile and build the model from the Embedded MATLAB Editor, click the Build tool . In the following example, an Embedded Matlab Function block argument inherits its data type from an input signal of type double.

Inheriting the type of input data is successful in all cases. The inherited type of output data is inferred from diagram actions that store values in the specified output. In the preceding example, the variables mean and stdev are computed from operations with double operands, which yield results of type double. If the expected type in Simulink matches the inferred type, inheritance is successful. In all other cases, a mismatch occurs during build time.

Note    No input or output arguments with inherited types are allowed for Embedded MATLAB Function blocks in a library.

Typing Function Arguments

Selecting Types for Arguments

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