{"coeffs": [-3.579881884855085e-07, -1.4707219723195385e-08, -0.2530337853083679, 0.045191460028053985], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0277835631418725e-07, 5.8371634122466827e-08, 0.07358790553976802, 0.06390560053123889], "covariance": [[1.0563390526646033e-14, -6.898658434655741e-16, 3.891115207112027e-09, -3.391845517258517e-09], [-6.89865843465574e-16, 3.407247670127134e-15, 1.074318463368089e-09, 1.2511297237532257e-09], [3.891115207112027e-09, 1.074318463368089e-09, 0.005415179841729821, -0.00084149092998974], [-3.391845517258517e-09, 1.251129723753226e-09, -0.00084149092998974, 0.00408392577925828]]}