how to remove the end of a dataset in matlab in matlab

To remove the end of a dataset in MATLAB, you can use indexing or slicing. Here is an example of how to do it:

main.m
% create a sample dataset
data = dataset({[1; 2; 3; 4; 5], 'Numbers'}, {'A'; 'B'; 'C'; 'D'; 'E'}, {'Yes'; 'No'; 'No'; 'Yes'; 'Yes'}, 'varNames', {'Values', 'Letters', 'Flag'});

% get the number of rows in the dataset
nRows = size(data, 1);

% remove the end of the dataset (last row and beyond)
newData = data(1:nRows-1, :);
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In this example, we first create a sample dataset data with 5 rows and 3 variables.

Next, we use the size function to get the number of rows in the dataset and store it in the nRows variable.

Finally, we use indexing to select all the rows from the first row to the second-to-last row and all the columns of the dataset. This will give us a new dataset without the last row and beyond. We store this new dataset in the newData variable.