{"coeffs": [-1.1533026419688939e-07, -2.7981137708002038e-09, -0.2926823605783856, 0.010173910319926727], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.4885199787945462e-08, 1.5545524422360058e-08, 0.03518399009285232, 0.03605283235110697], "covariance": [[6.192731684859609e-16, -8.099762638115671e-18, 1.066221274577817e-10, -1.1526463935899255e-10], [-8.099762638115673e-18, 2.4166332956619297e-16, 1.3105777137958855e-10, 1.2856661298118627e-10], [1.0662212745778166e-10, 1.3105777137958853e-10, 0.0012379131588539304, 0.000852440035539531], [-1.1526463935899254e-10, 1.2856661298118627e-10, 0.0008524400355395312, 0.0012998067205370251]]}