{"coeffs": [-3.0325459527697576e-07, -1.0997320254441807e-08, -0.26247816037545724, 0.0009182891885371884], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.18404904404905e-08, 3.5413804019973195e-08, 424734.5343511227, 214179.70131107583], "covariance": [[2.6874364491105873e-15, 0.0, -4.815886062306561e-11, 3.2029685724469645e-11], [-8.158428329992866e-33, 1.2541375151650695e-15, 3.8527088498452485e-11, 6.829593699628639e-12], [-6.742240487229185e-11, 0.0, 180399424670.465, -90969515703.82233], [3.8527088498452485e-11, 1.9263544249226243e-11, -90969515703.82231, 45872944453.70165]]}