{"coeffs": [-3.153994640175721e-07, 4.4509224532333925e-09, -0.29763968505096194, 0.010233959736397047], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.8993146501917387e-08, 1.64119355865919e-08, 0.012026473380128395, 0.017745974066172905], "covariance": [[8.406025440816444e-16, -1.7120502129238475e-17, 1.3466139599848187e-10, -1.8989462604193818e-10], [-1.7120502129238478e-17, 2.693516296984416e-16, 9.2094432367218e-12, 3.272385159462833e-11], [1.3466139599848187e-10, 9.209443236721804e-12, 0.0001446360619629369, -0.0001410923708797307], [-1.8989462604193818e-10, 3.272385159462832e-11, -0.00014109237087973073, 0.00031491959555728137]]}