Esempio n. 1
0
    def calc_marg_stats(self, *params):
        """
        Calculate the marginal density and Jacobian vs. nonlinear parameters
        and memoize the results.
        """

        if (params == self.pars):
            return self.Q, self.suf, self.Jac

#...    Evaluate the standardized models on the data, first calling the setup
#...    function for the data if it is present.
        args = list(params)
        args.append(self.absc)
        args = tuple(args)
        if (self.setup != None):
            aux = self.setup(*args)
            args = list(args)
            args.append(aux)
            args = tuple(args)
        for a in range(self.M):
            g = self.basis[a]
            self.modvals[a,:] = g(*args) / self.sigs

#...    Calculate the metric and various derived quantities.  Store them
#...    for possible future use before returning.
        self.metric, self.L, self.Jac, self.proj, self.ampl, self.suf =\
           vba.metricAnalysis(self.modvals, self.std_smpls)
        self.Q = self.dsqr - self.suf
        self.pars = params
        self.Jac = 1. / self.Jac
Esempio n. 2
0
    def calc_marg_stats(self, *params):
        """
        Calculate the marginal density and Jacobian vs. nonlinear parameters
        and memoize the results.
        """

        if (params == self.pars):
            return self.Q, self.suf, self.Jac

#...    Evaluate the standardized models on the data, first calling the setup
#...    function.
        self.obj.set_nonlin(*params)
        for a in range(self.M):
            self.modvals[a,:] = self.obj.std_basis[a]()

#...    Calculate the metric and various derived quantities.  Store them
#...    for possible future use before returning.
        self.metric, self.L, self.Jac, self.proj, self.ampl, self.suf =\
           vba.metricAnalysis(self.modvals, self.obj.std_smpls)
        self.Q = self.dsqr - self.suf
        self.pars = params
        self.Jac = 1. / self.Jac