{"coeffs": [-3.378814106876978e-07, -4.1914352238791515e-09, -0.30597231236914013, 0.035774150453788574], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.768274772255229e-08, 2.6825948334596885e-08, 0.033670026037225034, 0.029002223146702942], "covariance": [[3.327299384823611e-15, -1.4213087417333175e-16, 1.0226119137008858e-09, -8.528141183390528e-10], [-1.4213087417333177e-16, 7.196315040504615e-16, 1.858149824825515e-10, 2.143470406837418e-10], [1.0226119137008855e-09, 1.8581498248255147e-10, 0.0011336706533474116, -0.00020490045040294117], [-8.528141183390528e-10, 2.143470406837418e-10, -0.00020490045040294117, 0.0008411289474511518]]}