bbobbenchmarks.py 文件源码

def initwithsize(self, curshape, dim):
        # DIM-dependent initialization
        if self.dim != dim:
            if self.zerox:
                self.xopt = zeros(dim)
            else:
                self.xopt = .5 * self._mu1 * sign(gauss(dim, self.rseed))
            self.rotation = compute_rotation(self.rseed + 1e6, dim)
            self.scales = (self.condition ** .5) ** linspace(0, 1, dim)
            self.linearTF = dot(compute_rotation(self.rseed, dim), diag(self.scales))
            # decouple scaling from function definition
            self.linearTF = dot(self.linearTF, self.rotation)

        # DIM- and POPSI-dependent initialisations of DIM*POPSI matrices
        if self.lastshape != curshape:
            self.dim = dim
            self.lastshape = curshape
            # self.arrxopt = resize(self.xopt, curshape)
            self.arrscales = resize(2. * sign(self.xopt), curshape) # makes up for xopt