How can I generate random numbers
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I have along data series which contains 3451 elements. From this I want to select 1/3 rd of the elements for validation purpose and the remaining for test. How can I randomly make the selection randomly? Thanks .
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Image Analyst
2013년 4월 14일
편집: Image Analyst
2013년 4월 14일
Use randperm(), as this demo illustrates:
% Define the number of elements to use.
numberOfElements = 3451;
oneThird = int32(floor(numberOfElements / 3));
% Get all the indexes scrambled in a random order.
randomOrder = int32(randperm(3451));
% Select a third of them for "Validation."
indexesForValidation = randomOrder(1:oneThird);
% Select the remainder of them for "testing."
indexesForTesting = randomOrder(oneThird+1:end);
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