{"coeffs": [-1.168945900394308e-07, 4.936440061542701e-06, 0.4629122270292757, 0.10941038400541321], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.9990540590792864e-08, 6.478187279180034e-07, 0.025690501270386683, 0.008864152005868195], "covariance": [[1.5992433367438515e-15, -2.1860767077926803e-14, -8.577474291160142e-10, -3.30703693665079e-10], [-2.18607670779268e-14, 4.1966910424130013e-13, 1.6624797258463068e-08, 5.5623960613013734e-09], [-8.577474291160137e-10, 1.6624797258463064e-08, 0.0006600018555237398, 0.00022051993244235284], [-3.307036936650789e-10, 5.5623960613013734e-09, 0.00022051993244235287, 7.857319078313714e-05]]}