{"coeffs": [-3.895850503745741e-07, -2.055399740614751e-08, -0.2432573683914564, 0.035975857581593426], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.7774352891920024e-08, 2.914439103356513e-08, 0.029809009885174535, 0.025845124952510762], "covariance": [[2.282388794241707e-15, -1.1312155676564708e-16, 6.34344525433127e-10, -5.414368465125066e-10], [-1.1312155676564708e-16, 8.493955287173517e-16, 2.1531480284031632e-10, 2.181305550671611e-10], [6.34344525433127e-10, 2.1531480284031632e-10, 0.0008885770703344331, -9.474731413505775e-05], [-5.414368465125067e-10, 2.1813055506716116e-10, -9.474731413505775e-05, 0.0006679704838108944]]}