TIMEIT Benchmarking Function

The time is measured in seconds.

TIMEIT handles automatically the usual benchmarking procedures of "warming up" F, figuring out how many times to repeat F in a timing loop, etc.

TIMEIT uses a median to form a reasonably robust time estimate.

The function also warns when the reported time might be affected by time-measurement overhead.

Requirements:

· MATLAB 7.5 or higher