{"coeffs": [-1.6364760813536668e-07, 1.725965161310624e-07, -0.31706464202180784, 0.40437035374552927], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.052093290854324e-07, 2.406280533408301e-08, 1.010832707380146, 0.28254442960444415], "covariance": [[2.552364661949527e-13, -1.1657592250045108e-14, 5.106250629299141e-07, -1.4134406018513817e-07], [-1.1657592250043978e-14, 5.790186005459736e-16, -2.3377890318178425e-08, 6.717652554244426e-09], [5.106250629299125e-07, -2.3377890318180605e-08, 1.021782762309476, -0.283196901601082], [-1.4134406018513168e-07, 6.717652554244759e-09, -0.28319690160106986, 0.07983135470050069]]}