Hi dleal,
I understand that you are trying to read a mat file with dsp.MatFileReader. However, you are not able to do it, and the error mentioned above occurs while running the given code.
The error encountered with “dsp.MatFileReader” suggests that it is having trouble reading the specified variable from the “MAT” file. This might be due to the way the data is structured within the “MAT” file.
Specifically, the “dsp.MatFileReader” expects the variable to be a matrix or an array, but in this case, “S” is a structure containing two fields “A” and “B”.
To fix this issue, its necessary to save the fields of the structure “S” as separate variables in the “MAT” file.
Here's how the code can be modified to do that:
S.A = randn(1000,1);
S.B = randn(1000,1);
A = S.A; % Separate the fields into individual variables
B = S.B;
save('sampleS.mat','A','B','-v7.3'); % Save the individual variables
clear S A B;
filename = 'sampleS.mat';
VariableName = 'A'; % Set the variable name to one of the variables saved
SamplesPerFrame = 50;
mfr = dsp.MatFileReader(filename, 'VariableName', VariableName, 'SamplesPerFrame', SamplesPerFrame);
while ~isDone(mfr)
x = mfr();
d = x; % x is now directly the variable A, since that's what we're reading
end
The above snippet separates the fields “A” and “B” into individual variables, and the code shows expected results.
Please go through the following documentation for more information on “dsp.MatFileReader”:
Hope this helps.
Thanks
Gyan
