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Conversion to double from struct is not possible.

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Hello everyone,
I'm a matlab beginner. I imported txt files to matlab whitout problem, so I want to remove all DC noise of them in a loop. Could someone help me to reach this goal?
Filenames = dir('*mat');
numfiles1 = length(Filenames);
EEGSinDC = [];
for i = 1 : numfiles1
load (Filenames(i).name);
EEGSinDC(i) = Filenames(i);
EEGsinDC = EEGSinDC(i) - mean(EEGSinDC(i));
Conversion to double from struct is not possible.


Stephen Cobeldick
Stephen Cobeldick on 30 Jul 2020
Víctor Magdaleno's incorrectly posted "Answer" moved here:
registro is the variable

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Accepted Answer

Alan Moses
Alan Moses on 6 Aug 2020
The variable name can be used to select only the required data from the MAT file. To save the changes made to your data back to the MAT file, you can use the save function.You can use this piece of code to solve the issue:
Filenames = dir('*mat');
numfiles1 = length(Filenames);
for i = 1 : numfiles1
%replace with your variable name in the below line of code
load(Filenames(i).name, 'variableName');
variableName = variableName - mean(variableName);
%save(Filenames(i).name,' variableName ');
Alternately, you can use the matfile function if you wish to change the variables without loading the data into the workspace.

More Answers (1)

Walter Roberson
Walter Roberson on 6 Aug 2020
Filenames = dir('*mat');
numfiles1 = length(Filenames);
EEGSinDC = cell(numfiles1, 1);
for i = 1 : numfiles1
filedata = load(Filenames(i).name);
EEGSinDC{i} = filedata.registro - mean(filedata.registro);

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