{"coeffs": [-4.0625662909881093e-07, 4.364301033560134e-08, -0.33404672907910093, 0.09940785094410645], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.873578441336431e-07, 3.479471708733297e-08, 0.10583335912145021, 0.06937470637977133], "covariance": [[3.51029617584065e-14, -2.597269999815388e-15, 1.8526188282136147e-08, -1.1150910820924683e-08], [-2.5972699998153873e-15, 1.2106723371875407e-15, -7.306403477647518e-10, 1.4176446536951646e-09], [1.8526188282136143e-08, -7.306403477647513e-10, 0.01120069990292985, -0.005584678985281496], [-1.1150910820924683e-08, 1.4176446536951648e-09, -0.005584678985281497, 0.004812849885279486]]}