How can I evaluate an Simulink.data.Expression in a MATLAB script

Hi all,

In my data dictionary, I have a Simulink.Parameter whose value is set as an expression:

Parameter with properties:

Value: slexpr("single(420*pi/180)")
CoderInfo: [1×1 Simulink.CoderInfo]
Description: '...'
DataType: 'single'
Min: 0
Max: 20
Unit: 'rad'
Complexity: 'real'
Dimensions: [1 1]

Now I would like to get the numeric value of the parameter within a script. So how can I evaluate the expression

slexpr("single(420*pi/180)")

to get

ans =

single

7.3304

Any hint would be greatly appreciated. Thank you very much.

[checker]

Assuming you have a variable set equal to the expression

parmVal = slexpr("single(420*pi/180")

it will be of class type 'Simulink.data.Expression'

The value can be determined by the following

parmVal=eval(parmVal.ExpressionString)

Answer 1

[Jeffrey Clark]

@Karsten Gordon, Evaluate MATLAB expression in data dictionary section - MATLAB evalin (mathworks.com) or Evaluate MATLAB expression - MATLAB eval (mathworks.com). I don't have Simulink to try; to use the eval function you would have to use just what is in the quotes:"single(420*pi/180)"