{"coeffs": [-1.6168473186936644e-07, 0.004103033376578399, 3.9550462853787476, 0.38311996112047697], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [6.795282223194929e-07, 138.5866296122485, 12969.925501052308, 1.858638167453584], "covariance": [[4.617586049286902e-13, -9.286910433462572e-05, -0.008691496959430051, -1.2582483032789185e-06], [-9.286910344330543e-05, 19206.25390728255, 1797458.2526154944, 256.72907219094526], [-0.008691496876048718, 1797458.252625797, 168218967.50284696, 24026.733003551162], [-1.2582482971996398e-06, 256.7290733982659, 24026.733116403124, 3.4545358375152166]]}