{"coeffs": [-2.9487512968436723e-06, -1.1898778096309236e-07, -0.3601436058128145, 0.12009764953086498], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.3716604566396122e-06, 5.706956570606924e-08, 0.11859473265369196, 0.03982951557664026], "covariance": [[1.8814524083087897e-12, -3.9400865244784615e-14, 1.617949275129477e-07, -5.046288391887664e-08], [-3.940086524478474e-14, 3.2569353298793545e-15, -3.236710326552253e-09, 1.4955842314271274e-09], [1.6179492751294775e-07, -3.2367103265522257e-09, 0.01406471061320067, -0.004389915210275529], [-5.0462883918876726e-08, 1.495584231427125e-09, -0.004389915210275534, 0.0015863903110698288]]}