{"coeffs": [-0.1297239829143138, 1.5140653116817385e-09, -0.3281468005902593, 0.026067493414565036], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.22978641870077, 1.7999200633733951e-09, 2.5524099621446124, 0.2680391675531483], "covariance": [[67.72938449743165, 7.2173709539267605e-09, -20.369612548333496, 2.1821139589748335], [7.2173709539246975e-09, 3.2397122345340865e-18, -2.4576589998831964e-09, 2.510134922563705e-10], [-20.36961254833598, -2.4576589998828055e-09, 6.5147966148550625, -0.6807426236408419], [2.182113958974989, 2.510134922563633e-10, -0.6807426236408087, 0.07184499534258472]]}