{"coeffs": [-2.5164941411690823e-07, -1.2871516017939207e-08, -0.3095180607592628, 0.040511358278933034], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.985450256706856e-08, 2.7008418281968328e-08, 0.051164362989563, 0.04397659526522491], "covariance": [[3.582561477551216e-15, -1.7684830295215827e-16, 1.7261827538745694e-09, -1.4438688156511821e-09], [-1.768483029521583e-16, 7.294546580937611e-16, 2.815627835984119e-10, 3.5566216348651055e-10], [1.7261827538745692e-09, 2.815627835984119e-10, 0.002617792040127764, -0.0005508627618692597], [-1.4438688156511821e-09, 3.5566216348651055e-10, -0.0005508627618692597, 0.001933940931121402]]}