{"coeffs": [-4.903827383614499e-07, -2.611846775540997e-08, -0.28839210250193514, 0.04545310868611475], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.380843501228091e-07, 6.335111988702298e-08, 0.0650202424925823, 0.055931923630818794], "covariance": [[1.9067287748838524e-14, -1.1055040058343912e-15, 5.245124439166267e-09, -4.426540520807086e-09], [-1.1055040058343914e-15, 4.013364390939958e-15, 8.561790234534109e-10, 1.1566692922819885e-09], [5.245124439166266e-09, 8.561790234534109e-10, 0.004227631933794204, -0.0009529758656863526], [-4.426540520807086e-09, 1.1566692922819887e-09, -0.0009529758656863526, 0.003128380081043746]]}