{"coeffs": [-1.2389540932505015e-07, 6.022772096372047e-09, -0.30108073943442465, 0.0017991684140115326], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.4465817233398602e-08, 1.4146668114515343e-08, 833.5567007276353, 3486.1757146399254], "covariance": [[5.98576212898064e-16, -1.6721499873323916e-17, 7.2121248032754545e-06, -3.0163130711507277e-05], [-1.6721499873323916e-17, 2.0012821874224511e-16, -1.610946304112557e-06, 6.737475559360127e-06], [7.212124803462481e-06, -1.6109463040832101e-06, 694816.7733279405, -2905925.1268201815], [-3.0163130711783874e-05, 6.737475559390787e-06, -2905925.1268201815, 12153421.113345196]]}