{"coeffs": [-7.325968089102772e-07, -3.340730002497073e-08, -0.29372163481495933, 0.08508089702259079], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.6331222052641355e-07, 1.3473561016796593e-07, 0.16761311130357995, 0.13115006157547118], "covariance": [[2.1465821368911605e-13, -1.9953978519268946e-14, 6.55831748368973e-08, -4.839443275444624e-08], [-1.9953978519268934e-14, 1.8153684647334087e-14, -2.2877695594140243e-10, 9.303187903375426e-09], [6.558317483689732e-08, -2.2877695594140654e-10, 0.028094155080866278, -0.013158091294744023], [-4.839443275444624e-08, 9.303187903375427e-09, -0.01315809129474402, 0.01720033865124988]]}