The first argument (STRING) must be a one-dimensional array of char or cell arrays of
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g=regexpi(valid_ex,p); % Match Exact extension, ignoring case.
Hi Steven. It is the integral of the pdf function should be 1. So if your x-interval is very small, then the y-value of the pdf function could be larger than 1. E.g. A uniform distribution on x=[0,0.01]. Then y need to be 100 to make the integral 1.