{"coeffs": [-1.7028289749583287e-06, -5.433496670829762e-08, -0.3514621673692478, 0.09907420976404512], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.809061752121843e-07, 2.5926239182606404e-08, 0.0742961314955744, 0.026807589050421292], "covariance": [[3.37451984399649e-13, -6.290821006932669e-15, 4.282030740288459e-08, -1.4229210378832131e-08], [-6.29082100693267e-15, 6.721698781537155e-16, -7.353461359838234e-10, 3.9471073360274935e-10], [4.282030740288458e-08, -7.353461359838231e-10, 0.005519915155207682, -0.0018265135996591894], [-1.4229210378832133e-08, 3.947107336027492e-10, -0.0018265135996591902, 0.0007186468306962675]]}