{"coeffs": [-3.836360201732907e-07, -3.1696246276389875e-08, -0.23774946249915307, 0.04172777473357273], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.8595041663671657e-07, 1.1171433242024153e-07, 0.12929723128882012, 0.11224774090256535], "covariance": [[3.457755744736847e-14, -2.087916803038371e-15, 1.155226523475004e-08, -1.0032482097684286e-08], [-2.087916803038371e-15, 1.2480092068100227e-14, 3.69955990707319e-09, 4.013001903609847e-09], [1.1552265234750038e-08, 3.69955990707319e-09, 0.016717774018954645, -0.0021386855980825865], [-1.0032482097684285e-08, 4.013001903609847e-09, -0.0021386855980825856, 0.012599555337729442]]}