{"coeffs": [-2.8979820340357515e-07, 4.195559215141145e-09, -0.36583436243119477, 0.020455641402370512], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1548730858923078e-07, 4.9907105016547915e-08, 0.05468528372496661, 0.04558038745573507], "covariance": [[1.3337318445184219e-14, -2.565067291031121e-16, 2.7098904427067574e-09, -2.0594061152089092e-09], [-2.565067291031121e-16, 2.490719131132742e-15, 4.835713036670573e-10, 4.3775420001965423e-10], [2.7098904427067574e-09, 4.835713036670573e-10, 0.002990480256080098, -0.00027929854825013635], [-2.059406115208909e-09, 4.3775420001965434e-10, -0.00027929854825013635, 0.002077571720614931]]}