{"coeffs": [-3.756764525939151e-09, 9.314589153698381e-08, 0.6380781302899038, 0.21290366810513622], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.358977247650892e-09, 3.637091380250811e-08, 0.1451095375982363, 0.05925366285076718], "covariance": [[1.1282728150236362e-17, -1.0518221443273064e-16, -4.1106869173812026e-10, -1.8849784196726162e-10], [-1.0518221443273057e-16, 1.3228433708294748e-15, 5.269800066374974e-09, 2.087756296750262e-09], [-4.1106869173812005e-10, 5.269800066374974e-09, 0.021056777901973953, 0.008285829958519154], [-1.8849784196726154e-10, 2.0877562967502616e-09, 0.008285829958519154, 0.0035109965612323863]]}