{"coeffs": [-0.3482429981434352, 0.09300738362280872, -0.30415626485668096, 0.40874068028900057], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.692480303464584e-05, 1.383836526169499e-05, 2.8577311439234432e-05, 3.949472496876772e-05], "covariance": [[10.35010744270053, -5.008530478264575, 10.379987559253951, -14.934843927953626], [-5.008530478264576, 2.734068349475885, -4.406282463622451, 7.68319885447548], [10.37998755925395, -4.406282463622451, 11.659569726546222, -14.088778876394224], [-14.934843927953626, 7.68319885447548, -14.088778876394224, 22.26988508153682]]}