Computing the error between two curves of a figure

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Saleh Msaddi
Saleh Msaddi 2021년 1월 7일
답변: Monisha Nalluru 2021년 1월 11일
Hello,
I have two curves, one corresponding to a real function and the second is its estimated curve.
The whole simulation takes palce in simulink. How can I compute the absolute error between the two curves?
I have attached the figure for your consideration

답변(1개)

Monisha Nalluru
Monisha Nalluru 2021년 1월 11일
Absolute error is the difference of values of signals at the given simulation period.
absolute_error = abs(signal1_value - signal2.value);
In order to achieve this in simulink just add subtraction block between two output signal and resultant output is passed through the Abs block.
As an example, refer to the following model

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