{"coeffs": [-0.6653318035282457, -0.044404403866808, 0.06564709476468922, 0.04566067240192458], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.0694980681585853e-07, 1.8827813672869083e-07, 7.073496045278238e-08, 6.247988398709194e-08], "covariance": [[0.003734586885975699, -0.0009016084916013457, 0.0006307130809825475, -0.0007488749754903985], [-0.0009016084916013457, 0.011573969735365987, 0.002338677394669575, 0.002245430620382621], [0.0006307130809825475, 0.002338677394669575, 0.0016336190496345263, 0.00027026928189736695], [-0.0007488749754903985, 0.002245430620382621, 0.00027026928189736695, 0.0012745679332722653]]}