{"coeffs": [6.964581619554583e-07, 1.338172184961102, 1.7466265469279738, 0.11484665751232331], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [7.146883802359971e-07, 4563.605169801334, 393.4082510447285, 0.014469167585142453], "covariance": [[5.107794808443533e-13, -0.002000950133370499, -0.0001725083111035077, -7.660759188838128e-09], [-0.002000950132607144, 20826492.145837467, 1795359.918363307, 63.19690999995379], [-0.0001725083110377752, 1795359.918363392, 154770.05199007213, 5.44810004035435], [-7.66075918746016e-09, 63.196910008562654, 5.448100041095644, 0.00020935681060693708]]}