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Finding the largest index in an array that is divisible by a certain number

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Senaasa
Senaasa 2013-5-23
Hi,
Given an nx1 array, I'm trying to get matlab to determine the largest index value which is divisible by a number (say 3), and then have matlab truncate the array to that point.
Any suggestions?
Thanks, Charles

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Walter Roberson
Walter Roberson 2013-5-23
divisor = 3;
new_array = old_array(1 : end - mod(end,divisor));

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