{"coeffs": [-6.591162067655027e-09, 8.076363973670783e-06, 0.5715345784149688, 0.08229291586757087], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [8.234028027047213e-09, 2.5703071499766e-06, 0.03779338297903502, 0.004157484002500281], "covariance": [[6.779921755019902e-17, -1.6065925514236153e-14, -2.4087044276282684e-10, -2.934234743670775e-11], [-1.6065925514236197e-14, 6.606478845220832e-12, 9.706476387768163e-08, 1.0369684954883281e-08], [-2.408704427628266e-10, 9.706476387768163e-08, 0.001428339797000014, 0.0001537809649580023], [-2.934234743670795e-11, 1.0369684954883283e-08, 0.0001537809649580023, 1.7284673231045757e-05]]}