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object --+ | FiniteDifferencesFunction --+ | FiniteDifferencesCache
General class for recognition by ParamEst as a function with a non-explicit derivative. Uses a cache to save recomputation of most recent values.
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Creates the function : - eps is the scale at which the function varies by O(1) in each parameter direction - grad_ratio_tol (optional, default = 10) is the relative change in any direction after which the function is deemed to have changed non-smoothly, so that gradient in that direction will be ignored this step
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Generated by Epydoc 3.0.1 on Sun Dec 2 23:44:23 2012 | http://epydoc.sourceforge.net |