{"coeffs": [-1.652569920404212e-07, 1.7463943345290376e-06, 0.7963232381121564, 0.20071094076095541], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.6992279150954554e-08, 2.039730580263706e-07, 0.03361102664909366, 0.02239690424549354], "covariance": [[2.2082742998012377e-15, -9.106534602626805e-15, -1.4542672031153838e-09, -1.03725534202378e-09], [-9.106534602626927e-15, 4.160500840062914e-14, 6.830606314859362e-09, 4.511837200583665e-09], [-1.454267203115409e-09, 6.8306063148593835e-09, 0.0011297011124060843, 0.0007317881144018173], [-1.037255342023786e-09, 4.511837200583633e-09, 0.0007317881144018098, 0.0005016213197818066]]}