{"coeffs": [-4.425886772994639e-08, 2.5177796155328062e-05, 0.8733157796294886, 0.15475775474381848], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.144276168400847e-08, 8.892019085549925e-05, 0.6633615501042035, 0.032723498328707294], "covariance": [[3.7752129633578585e-15, -5.031032068464959e-12, -3.7824114995410354e-08, -1.9505667777552146e-09], [-5.0310320684679476e-12, 7.906800341778413e-09, 5.897291825546036e-05, 2.8649786072403262e-06], [-3.782411499543186e-08, 5.897291825545848e-05, 0.4400485461566517, 0.02144850478739944], [-1.9505667777558238e-09, 2.8649786072395584e-06, 0.021448504787394396, 0.001070827342868909]]}