how to load his code
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hello everyone, am working on some sound analysis on wav files which I have loaded into matlab and I run all other process but it show an under line where I have marked at the end and it show this massage can some one help please
%load audio file in to matlab
training_fds = fileDatastore(fullfile(pwd,'training'), 'ReadFcn', @importAudioFile, 'FileExtensions', '.wav', 'IncludeSubfolders', 1);
data_dir = fullfile(pwd, 'training');
folder_list = dir([data_dir filesep 'training*']);
for ifolder = 1:length(folder_list)
disp(['Processing files from folder: ' folder_list(ifolder).name])
current_folder = [data_dir filesep folder_list(ifolder).name];
reference_table = table();
% Import ground truth labels (1, -1) from reference. 1 = Normal, -1 = Abnormal
*_reference_table_* = [reference_table; importReferencefile([current_folder filesep 'REFERENCE.csv'])];
end
Consider preallocating a variable or array before entering the loop by using zeros, ones, cell, or a similar function. Preallocating avoids the need for MATLAB to copy the data from one array to another inside the loop. For examples of code that do and do not preallocate an array, see “Preallocating Arrays”.
3 个评论
madhan ravi
2018-10-7
type size(current_folder) and post what you see here
Note that you call reference_table = table(); within the loop, so this will overwrite any existing reference_table from any previous loop iterations. Basically your loop does nothing as it discards all imported data, except for from the last iteration.
Tip: do not create filepaths using string concatenation. Use fullfile.
sam aldoss
2018-10-13
回答（1 个）
Try something like this:
S = dir(fullfile('.','training*'));
N = {S([S.isdir]).name};
C = cell(1,numel(N));
for k = 1:numel(N)
F = fullfile('.',N{k},'REFERENCE.csv');
C{k} = importReferencefile(F);
end
All of the data will be in the cell array C. This is based on the examples in the MATLAB documentation:
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2018-10-7
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