{"coeffs": [-1.0986213526948763e-06, -3.50171246399375e-08, -0.14652561220262575, 0.09469687396025438], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.2103094883219083e-07, 9.272080135393353e-08, 0.04148919809786089, 0.04017854801983651], "covariance": [[1.4648490575220396e-14, -3.910290875532911e-15, 2.7895550904511036e-09, -3.4322717092172127e-09], [-3.910290875532914e-15, 8.597147003715601e-15, 1.251635756586397e-09, 2.399828417481144e-09], [2.789555090451102e-09, 1.2516357565863985e-09, 0.001721353558803544, -0.00026245427480882963], [-3.432271709217213e-09, 2.399828417481143e-09, -0.0002624542748088301, 0.001614315720982308]]}