{"coeffs": [-3.3911437090364534e-08, 9.440381921056783e-06, 0.4807558362560303, 0.07820939588324875], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.3518534741304175e-08, 1.0422015249104424e-06, 0.01544905901307945, 0.0037496078679640273], "covariance": [[5.531214763779314e-16, -1.7896420147750387e-14, -2.6637516950539604e-10, -7.425480208379082e-11], [-1.7896420147750387e-14, 1.0861840185256515e-12, 1.608123547940829e-08, 3.757772732091021e-09], [-2.66375169505396e-10, 1.6081235479408292e-08, 0.0002386734243896114, 5.611007551079985e-05], [-7.425480208379088e-11, 3.757772732091021e-09, 5.611007551079985e-05, 1.4059559163497738e-05]]}