How to append values from different files to an array?
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Hello, I have a script that reads in a signal and finds the mean intensity from it. I have hundreds of these files and each time I run I would like to add the next mean value to an array. The files are CSV's and the code is edited each time to call a new file.
data=load('600-0.csv'); %filename changed every time and ran again
V=data(:,1);
M=mean(V);
% I have tried using this, however this overwrites each time.
mean=[]
mean = [mean; M]
Thank you for help. I have spent a lot of time trying to find a solution before posting here.
采纳的回答
Jan
2021-3-1
Do not use "mean" as name of a variable, because then you cannot use the function mean() anymore.
Folder = 'C:\Your\Folder';
FileList = dir(fullfile(Folder, '*.csv'));
MeanData = zeros(1, numel(FileList)); % Pre-allocation!!!
for iFile = 1:numel(FileList)
aFile = fullfile(Folder, FileList(iFile).name);
Data = load(aFile);
MeanData(iFile) = mean(Data(:, 1));
end
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