{"coeffs": [-2.0234975727426034e-06, 0.11585871307736746, 2.907079905825119, 0.27635258536534074], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [9.891040837164964e-07, 96.04431799737655, 231.8748362902865, 0.05311869852124438], "covariance": [[9.783268884246497e-13, -8.654543318698898e-05, -0.00020897253956741405, -5.081656358008533e-08], [-8.654543322096871e-05, 9224.51101958119, 22270.259154863423, 5.009759845149068], [-0.00020897253964973254, 22270.259154856143, 53765.93970464717, 12.095616135779311], [-5.0816563590107996e-08, 5.0097598442464655, 12.095616133603137, 0.0028215961325908498]]}