Saving and reloading a table

Question

Timothy 2023-8-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2010272-saving-and-reloading-a-table

回答： Image Analyst 2023-8-18

Hello,

I created a livescript for data, and the result is a table. I open the live script and multiply several variables in the table in order to transform them into the necessary data. I then save the new table. Whenever I try to load it, however, the following occurs:

>> load('Tex.mat')

Error using load

Unable to read MAT-file C:\Users\(filelocation). File might be corrupt.

How do I save and access this table within MATLAB? Thank you.

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Answer 1

Image Analyst 2023-8-18

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https://ww2.mathworks.cn/matlabcentral/answers/2010272-saving-and-reloading-a-table#answer_1289627

在 MATLAB Online 中打开

That should work. You'll need to show us how you actually saved it with the save function.

What I'd do is

%------------------------------------------------------------------------------------
% Save table.
folder = pwd; % Specify some folder where the output file will be saved to.
fullFileName = fullfile(folder, 'Tex.mat'); % Get the full path : folder plus name.
save(fullFileName, 'newTable'); % Save table "newTable" into a .mat file.
%------------------------------------------------------------------------------------
% Recall table.
if ~isfile(fullFileName) % Make sure file exists.
    % Then the file was not found.
    errorMessage = sprintf('ERROR: The file "%s" does not exist', fullFileName)
    uiwait(errordlg(errorMessage));
    return; % Bail out since file was not found.
end
% If we get here, the file exists.  First, read the mat file into a structure.
s = load(fullFileName) % I like to leave the semicolon off so it prints all field names to the command window.
% Extract the newTable field of the structure into its own variable for convenience.
recalledTable = s.newTable;