Assign vectors from MATLAB workspace structure to Simulink Model inports

Question

Masoom Kumar 2018-5-28

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https://ww2.mathworks.cn/matlabcentral/answers/402861-assign-vectors-from-matlab-workspace-structure-to-simulink-model-inports

评论： Masoom Kumar 2018-5-29

I need help with running a Simulink model with the data from MATLAB workspace contained in structures. Below is a very simplified use-case of what I would like to do

Use Case :

I have a struture in MATLAB workspace called "data", and it has two fields x, and y which are vectors. I have a simulink model with two inports named x and y. I would like to dynamically assign to data from the structure "data" to the Simulink inports and run the model

The above use case is a very simplified scenario. The model that I intend to use can have 100 inports, and thus I do not want to use "From Workspace" block, as it would be impractical for me to add 100s of them

How can I handle such a situation in Simulink. I am a little more than a beginner in MATLAB and Simulink. So, a detailed answer would help me a lot

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Answer 1

TAB 2018-5-28

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402861-assign-vectors-from-matlab-workspace-structure-to-simulink-model-inports#answer_322219

编辑：TAB 2018-5-28

在 MATLAB Online 中打开

See Load Data to Root-Level Input Ports

You need to arrange your data in time series form.

One of the format is like below:

dataIn.time = [0:10]'; % Depend upon your sample time and stop time
dataIn.signals(1).values = data.x; % x values at each step
dataIn.signals(1).label = 'x'; %Inport name
dataIn.signals(2).values = 'data.y'; % y values at each step
dataIn.signals(2).label = 'y'; %Inport name

Now enter dataIn in Configuration Parameters > Data Import/Export > Load from workspace > Input

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TAB 2018-5-29

在 MATLAB Online 中打开

dataIn.signals(2).values = 'data.y';

--> You have assigned string here. Remove the single quote.

Masoom Kumar 2018-5-29

Thank you very much for the help. It solved the problem

Just to add, on the page that you had suggested, I found another method using Loading Data Arrays to Root-Level Inputs, which was also very useful. Just bunch all the signals in a matrix :)

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