{"coeffs": [-1.837380041186057e-07, -2.292592887066051e-08, -0.1560564486927871, 0.007926450618664413], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.311782336111035e-08, 2.001089708417738e-08, 0.03781149865863569, 0.016288317924863238], "covariance": [[5.344337569554995e-16, -7.797996099051979e-19, 1.5185649140119092e-10, -4.561524772643858e-11], [-7.797996099051895e-19, 4.004360021135387e-16, 1.77882041282811e-10, 7.430644800963435e-11], [1.5185649140119103e-10, 1.77882041282811e-10, 0.0014297094308120084, 0.00029406589743979553], [-4.5615247726438534e-11, 7.430644800963435e-11, 0.00029406589743979564, 0.000265309300821421]]}