{"coeffs": [-1.7797279443342212e-06, 1.2035189769053262e-05, 0.3435852903016128, 0.17860222779281815], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.989791791872053e-07, 8.403025093126867e-07, 0.013242581929189623, 0.016654563629876128], "covariance": [[1.591843854248961e-13, -3.1424919897908605e-13, -4.193011300438809e-09, -6.525178573176918e-09], [-3.1424919897908706e-13, 7.061083071571979e-13, 1.0630814695339123e-08, 1.376732205700259e-08], [-4.193011300438837e-09, 1.0630814695339151e-08, 0.00017536597615129955, 0.00019638727128439048], [-6.525178573176927e-09, 1.3767322057002566e-08, 0.00019638727128438955, 0.00027737448970159274]]}