How to export a column vector from a "MATLAB Function" block without seeing the “Cannot Save Outputs in the ‘Array’ Format” error?

I have a Simulink model which contains a "MATLAB Function" block. The "MATLAB Function" block code outputs a column vector of values.

However, when trying to output these values using an "Outport" block, I see the error message below:

Cannot save outputs in the 'Array' format because signals connected to the root outports of model 'MyModel' are not scalar or 1-D arrays. Set 'Configuration Parameters > Data Import/Export > Format' to 'Dataset', 'Structure' or 'Structure with time'.

How can I resolve this error to export a column vector from my "MATLAB Function" block?

Answer 1

[MathWorks Support Team]

MATLAB interprets a column vector as a matrix of size [N x 1] while Simulink interprets a column vector as a 1-D array containing N values.

Therefore, to resolve the issue, you may either:

1. Go into the "MATLAB Function" block's code under the "FUNCTION" tab, then select "Edit Data". Select the output variable which is causing the error in the right-hand side tab and in the code. Open the "Advanced" drop-down menu and check the option to "Interpret output column vectors as one-dimensional data".
   
2. Use a "Reshape" block with the "Output Dimensionality" parameter set to "1-D array" to define the [Nx1] matrix as a 1-D array.