{"coeffs": [1.4335649446274354e-07, 3.446933686107883e-05, 0.6119536918430513, 0.12061086141853768], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [3.7184691317272346e-08, 1.8834431944616302e-06, 0.011949925560400268, 0.0028378305648404166], "covariance": [[1.3827012683608292e-15, -4.2330991766104e-14, -2.709123628762675e-10, -7.888571133059139e-11], [-4.2330991766104085e-14, 3.5473582667638307e-12, 2.2454655065413553e-08, 5.034859695801089e-09], [-2.709123628762683e-10, 2.2454655065413563e-08, 0.00014280072089910766, 3.238493392550527e-05], [-7.888571133059147e-11, 5.03485969580109e-09, 3.238493392550527e-05, 8.053282314742478e-06]]}