{"coeffs": [-3.1331923201733053e-07, 0.06269721727995975, 1.6292366805437142, 0.12878025132569518], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-05, "errors": [3.5708399273544224e-08, 3.9199121236814882, 8.111663236586987, 0.002184307928895247], "covariance": [[1.2750897786788536e-15, -9.321965483270652e-08, -1.929935968365697e-07, -6.159388867047847e-11], [-9.321965483904671e-08, 15.365711057385115, 31.79700134172898, 0.008213533403346004], [-1.9299359684994497e-07, 31.79700134172742, 65.79908046379687, 0.016999656378802585], [-6.159388867248919e-11, 0.00821353340314871, 0.016999656378394207, 4.771201128234643e-06]]}