{"coeffs": [3.0628144589005774e-10, 4.769382161059162e-06, 0.45057350626250375, 0.08080268633523999], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.983538793511753e-08, 6.513591720410907e-07, 0.021075012342918174, 0.006797757245083414], "covariance": [[8.901503732389566e-16, -1.4339895167421476e-14, -4.562144216539776e-10, -1.7349032072738902e-10], [-1.43398951674215e-14, 4.2426877100205517e-13, 1.3700960639889967e-08, 4.237042118789884e-09], [-4.5621442165397836e-10, 1.370096063988997e-08, 0.00044415614525415334, 0.00013734826835021363], [-1.7349032072738922e-10, 4.237042118789883e-09, 0.00013734826835021355, 4.6209503563084044e-05]]}