{"coeffs": [-1.7435285754598212e-07, -6.518371383170897e-09, -0.2799937107769048, 0.031370040523800526], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.07320534480132e-08, 1.675997830980882e-08, 0.03683238895644959, 0.03182024738871446], "covariance": [[9.444591091315402e-16, -3.66483091719842e-17, 5.087329589601891e-10, -4.2436083811445833e-10], [-3.664830917198417e-17, 2.8089687294526214e-16, 1.3711265068980434e-10, 1.3792262121613406e-10], [5.08732958960189e-10, 1.3711265068980431e-10, 0.0013566248762391896, -0.0001598759636019364], [-4.2436083811445833e-10, 1.379226212161341e-10, -0.00015987596360193639, 0.0010125281438789894]]}