{"coeffs": [-6.052858638018446e-06, -2.8126238736843524e-07, -0.2902302728198323, 0.09832228457051673], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.5032379844760963e-06, 1.4060411332983198e-07, 0.059944705372023115, 0.029511480288251343], "covariance": [[2.259724437971756e-12, -8.555613100377945e-14, 8.807433661451978e-08, -3.953006811035113e-08], [-8.555613100377945e-14, 1.976951668526823e-14, -2.6119325679726214e-09, 2.3643410073416366e-09], [8.807433661451978e-08, -2.6119325679726214e-09, 0.0035933677021386568, -0.0015289403390655826], [-3.953006811035113e-08, 2.3643410073416374e-09, -0.0015289403390655826, 0.0008709274688038475]]}