{"coeffs": [5.027997015935356e-07, 0.7278301562038079, 1.5743166287681287, 0.09646304423176673], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [2.9356175609737973e-07, 2576.8540347462886, 343.0524469850913, 0.011417487767400859], "covariance": [[8.617850464297746e-14, -0.0004057961380173517, -5.4027879465092206e-05, -2.2242888896597543e-09], [-0.00040579613783187226, 6640176.716388226, 883996.0778777928, 28.10184725231415], [-5.402787944110573e-05, 883996.0778778351, 117684.98138245886, 3.741267671664273], [-2.2242888891135794e-09, 28.10184725654465, 3.741267672226852, 0.00013035902691874824]]}