{"coeffs": [-8.06960009334322e-07, 0.21101760455233393, 1.719543538146038, 0.1170076594261756], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-07, "errors": [5.57623952635014e-07, 1522.5151781551888, 850.6577894613638, 0.047535122848312655], "covariance": [[3.109444725522963e-13, -0.0005281588185703897, -0.0002951295493116406, -1.9854075913373565e-08], [-0.0005281588183970314, 2318052.467712926, 1295139.3807860876, 69.28873084234122], [-0.0002951295492099392, 1295139.380786164, 723618.6747712939, 38.71469372206428], [-1.9854075910151948e-08, 69.28873085046851, 38.71469372659672, 0.002259587904204176]]}