{"coeffs": [-7.476841801289777e-06, 0.00011223534095591603, 0.5141842017242862, 0.22161727700545655], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.8806616353889966e-06, 1.0204998666304576e-05, 0.033202905446851325, 0.019590144330379717], "covariance": [[3.5368881868240154e-12, -1.6650442014227725e-11, -5.0679517364932237e-08, -3.5123710710714705e-08], [-1.6650442014227725e-11, 1.0414199777927818e-10, 3.365930228668799e-07, 1.9346112827982464e-07], [-5.067951736493225e-08, 3.365930228668799e-07, 0.0011024329301125495, 0.0006123455683179149], [-3.5123710710714705e-08, 1.9346112827982464e-07, 0.0006123455683179149, 0.00038377375488510854]]}