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%% Enable Write Access to MAT-file %% % Enable write access to the MAT-file, |myFile.mat|, by setting |Writable| % to |true| when you open the MAT-file. filename = 'myFile.mat'; m = matfile(filename,'Writable',true); %% % Alternatively, set |Properties.Writable| in a separate step after you % open the MAT-file. m.Properties.Writable = true;