{"coeffs": [-0.4133619351300052, -0.27010143269518455, 3.231261141083824, 0.06664761663345661], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.320564058140003e-07, 0.0, 0.0, 0.0], "covariance": [[0.010246494279266176, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0], [0.0, 0.0, 0.0, 0.0]]}