How to access the data from the FFT Analysis tool in the Powergui and use in the workspace

hi

I simulate the circuit in Simulink Matlab and measures its fft using FFT analysis tool in the powergui. now I want to access the values of each harmonic, and THD, and use it in the workspace. I find the related question in the following URL.

https://www.mathworks.com/matlabcentral/answers/99089-how-can-i-access-the-data-from-the-fft-analysis-tool-in-the-powergui-from-the-matlab-command-prompt

sps = power_fftscope(bdroot)
%Sampling time
Ts = sps.FFTdata.t(2)-sps.FFTdata.t(1)
%Samples per cycle
Sc = 1/(Ts*sps.fundamental)
%DC component
DC = sps.mag(1)
%Fundamental frequency
Fc = sps.fundamental
%Total harmonic distortion
THD = sps.THD

I name the scope as voltage. run the Simulink file.then I go to command line and execute the first line of the code.

when I execute first line

sps = power_fftscope(bdroot)

answer comes: sps = []

then next line execute:

      Ts = sps.FFTdata.voltage(2)-sps.FFTdata.voltage(1)

this error comes

Attempt to reference field of non-structure array.

what does it means and how to get the data from the FFT` analysis. kindly help me I will be highly thankful to you

Answer 1

[Sophia Hofmann]

Have you found a solution for your problem? I get the same message and need some help.