i get the message - The value of the "OutputData" property must be a double matrix or a cell array of such matrices. How can i fix this issue?

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Alan 2025-9-7，16:05

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回答： Shantanu 2025-9-10，11:52

Am conducting system identification in Matlab model i have of a PV UPQC and trying to identify the output of the DC capacitor voltage

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Answer 1

Shantanu 2025-9-10，11:52

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Hi Alan,

You can use curly brace {} indexing to extract the raw data. This pulls the numerical values directly into a matrix. Here is an example snippet explaining the same

% Let's assume your data is in a table 'T'. 
% Columns 2 and 3 are inputs, and columns 4 and 5 are outputs. 
Ts = 0.01; % Your sampling time 
% Directly create the iddata object using curly brace indexing 
dataSet = iddata( T{:, 4:5}, T{:, 2:3}, Ts ); 