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Take percentage of a data set

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jgillis16
jgillis16 2015-7-28
评论： jgillis16 2015-7-29
I need to take 17.65% of a 2016x1 double array (meaning I only want 17.65% of the data in that array).
What would the code for this look like?
Thanks!

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Walter Roberson
Walter Roberson 2015-7-29
num_to_fetch = round(17.65 / 100 * length(YourVector));
your_subset = YourVector(randperm(length(YourVector), num_to_fetch));

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