{"coeffs": [-2.494892922490126e-07, 0.9400435828196412, 1.9861515001678332, 0.14254728139843614], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.880823551068633e-07, 2227.6504419677717, 339.1839739190943, 0.016279510319320054], "covariance": [[4.734573274094076e-13, -0.0010904239525872468, -0.00016604414514480987, -9.290855494713632e-09], [-0.0010904239526944345, 4962426.491599209, 755583.323374561, 34.878031586655986], [-0.0001660441451592402, 755583.3233745486, 115045.76816354883, 5.31075005350494], [-9.290855495192873e-09, 34.87803158537868, 5.310750053309643, 0.0002650224562368481]]}