{"coeffs": [-1.1210894914626124e-06, -3.752167119755148e-08, -0.37401827910948543, 0.0006807197797867211], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.4570433721036025e-07, 2.1010703107565544e-07, 230097.05712044347, 130464.49172081372], "covariance": [[1.986523562081265e-13, 6.892138182940024e-30, 1.0171000734506896e-09, -5.154013327793843e-10], [4.8244967280580166e-30, 4.4144964507426445e-14, 3.051300220352069e-10, -9.354791464666941e-11], [1.0171000734506896e-09, 3.051300220352069e-10, 52944655695.488625, -30019495603.673695], [-5.085500367253448e-10, -1.5256501101760346e-10, -30019495603.673695, 17020983599.97027]]}