{"coeffs": [9.519420662245222e-08, 7.834822180569884e-06, 0.5545747605561755, 0.06142058196561299], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.060593452900116e-08, 2.0376728344769968e-07, 0.004305537427233897, 0.002693149075030838], "covariance": [[9.367232283935054e-16, -1.9707381091569413e-15, -1.973454340936559e-11, -3.966038339047634e-11], [-1.9707381091569417e-15, 4.152110580365519e-14, 8.216779158462393e-10, 4.674120303956284e-10], [-1.9734543409365612e-11, 8.216779158462395e-10, 1.8537652537311883e-05, 8.950802810605433e-06], [-3.9660383390476356e-11, 4.674120303956284e-10, 8.95080281060543e-06, 7.253051940339458e-06]]}