{"coeffs": [-1.8911165795682213e-08, 2.775571336333883e-05, 0.6334247473947833, 0.0936073763020188], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.072444268431908e-08, 1.5702534946180106e-06, 0.010735139923091108, 0.003513227801952011], "covariance": [[3.6874579393211526e-15, -4.9298436107613975e-14, -3.221905022783529e-10, -1.4159704800676172e-10], [-4.9298436107613874e-14, 2.465696037360075e-12, 1.6779608841105496e-08, 5.135737850519968e-09], [-3.22190502278352e-10, 1.6779608841105496e-08, 0.00011524322916834456, 3.5302859639447125e-05], [-1.4159704800676149e-10, 5.135737850519968e-09, 3.5302859639447125e-05, 1.2342769588408559e-05]]}