This function checks that the cost function is correctly specified in the
optimization object, including that the elements of
this used by the
cost function are consistent.
An optimization object
Depending on the definition of nonlinear constraints (
element > 0) and the use of derivatives (
withderivatives element set to
TRUE), this function makes several cost function calls with different
index value (see
more details about
index). If at least one call fails, the function
stops the search algorithm.
Following every successful cost function call,
optimbase.checkshape to check the dimensions of the matrix
returned by the cost function against some expectations.
Return the optimization object or an error message if one check is not successful.
Author of Scilab optimbase module: Michael Baudin (INRIA - Digiteo)
Author of R adaptation: Sebastien Bihorel (firstname.lastname@example.org)
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