Error while importing signal data to signal builder

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Aleksi Martikainen
Aleksi Martikainen 2018-3-20
回答： Aniket 2025-5-7
I have a Simulink model. I run the model and save output data from my model to workspace, save that data to a .mat file and import that data to a signal builder in another model. When I try to run the new model with the signal builder, I get an error:
"Error in [my model/Signal builder]: Initialization commands cannot be evaluated. Caused By: * In an assignment A(:) = B, the number of elements in A and B must be the same."
How do I solve this problem? I am using MATLAB R2017a.
  2 个评论
Aleksi Martikainen
Aleksi Martikainen 2018-3-20
Here is the model that produces the error in Matlab 2017a. The model has only the signal builder with the imported data. The data is imported from four different .mat files to seperate signal groups.

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回答（1 个）

Aniket
Aniket 2025-5-7
Hi @Aleksi Martikainen,
This error occurs because the data saved in the Dataset has fixed-point data type. To remove this error in R2017a, please convert the signals to doubles before logging.
The error should not occur in R2017b with the same fixed-point Dataset.
Hope this helps!

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