{"coeffs": [2.9521609369096827e-07, 1.088673845689082, 1.8099692385126556, 0.12176692754704693], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-06, "errors": [6.190896813898021e-07, 3464.185877029369, 389.16529819453757, 0.014989196700670396], "covariance": [[3.832720336033267e-13, -0.0013732703140076157, -0.0001542861940197234, -7.10985023874346e-09], [-0.0013732703135426348, 12000583.790609736, 1348140.9219097204, 49.750159822302415], [-0.0001542861939653393, 1348140.9219097812, 151449.62931884333, 5.589094611471108], [-7.109850237448413e-09, 49.750159828489444, 5.589094612165833, 0.0002246760177313883]]}