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d{i}(end+1:max(numOfTrainSamples)) = inf;

can anyone tell what does this do d has 3 iteration and numOfTrainSamples is equal to 1

It suppose to do something but when i ran it doeasnt do anything

Walter Roberson
on 21 Nov 2020

The code goes through all of the F cell entries, and finds the number of columns in each, recording the number of columns in numOfTrainSamples(i) at each point. It takes the maximum overall of the number of those. As it goes through and finds the distances, it extends the calculated distances out to the maximum number of samples that were encountered, extending with infinities.

The reason it does this is to be able to compare between the different F, by producing distance arrays that are the same size.

By the way, the way it initializes the arrays is incorrect, but in a way that does not matter. The initialization of d{i} with inf values is not needed as long as d is initialized to be a cell with the correct number of entries.

John D'Errico
on 20 Nov 2020

It does nothing on its own. A single line of code has little meaning, out of context.

What does it do? It sets some elements of a specific element of one cell in a cell array to inf. Actually, it APPENDS infs to the end of the vector. There will be max(numOfTrainSamples) infs appended.

Why it does that is what really matters.

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