error check for unique values of data set in matlab

To error check unique values of a dataset in MATLAB, you can use the unique function. The unique function returns an array with the unique elements in the input array. By comparing the length of the input array with the length of the output array, you can determine whether the input array has any duplicate values.

Here's an example code:

main.m
data = [1, 2, 3, 4, 5, 5, 6];
unique_data = unique(data);

if length(data) == length(unique_data)
    disp('Data set contains only unique values.');
else
    disp('Data set contains duplicate values.');
end
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In the example code, the data array contains duplicate values (5), so the output will be:

main.m
Data set contains duplicate values.
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If the data array had contained only unique values, the output would have been:

main.m
Data set contains only unique values.
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Note: This method will only detect any duplicate values in your dataset, it doesn't specify which element(s) in the dataset are duplicates.