{"coeffs": [-5.044425314142413e-07, 0.005442077464387822, 6.1897120939095, 0.6945249177882722], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 9.9999999999999995e-08, "errors": [2.2976542305637612e-06, 56.777248223975946, 7275.6324256584985, 2.9392824338350083], "covariance": [[5.27921496322755e-12, -0.0001299043963201294, -0.01664660810116695, -6.7461343322661955e-06], [-0.0001299043961365194, 3223.65591588698, 413090.3842847689, 166.71121346999956], [-0.016646608077668, 413090.38428564655, 52934827.19329336, 21363.084101072858], [-6.746134327481137e-06, 166.7112135870315, 21363.08411602435, 8.63938122585105]]}