cb87a5e687c47f8fb0eca2e52ea3e47326518c6d,Python/phate/phate.py,PHATE,calculate_potential,#PHATE#,657

Before Change

            // handling small values
            diff_op_t = diff_op_t + 1e-7
            diff_potential = -1 * np.log(diff_op_t)
        elif self.potential_method == "sqrt":
            diff_potential = np.sqrt(diff_op_t)
        else:
            raise ValueError("Allowable "potential_method" values: "log" or "
                             ""sqrt". "{}" was passed.".format(
                                 self.potential_method))
        log_complete("diffusion potential")
        return diff_potential

After Change

            // handling small values
            diff_op_t = diff_op_t + 1e-7
            diff_potential = -1 * np.log(diff_op_t)
        elif self.gamma == -1:
            diff_potential = diff_op_t
        else:
            c = (1 - self.gamma) / 2
            diff_potential = ((diff_op_t)**c) / c
        log_complete("diffusion potential")
        return diff_potential

Instances