{"coeffs": [-7.150228116563994e-06, 0.00012981938472259957, 0.7438639136111447, 0.2710520253650702], "function": "fpl = lambda t, Cl, Cu, A, k: (Cl + ((Cu - Cl) / (1 + numpy.exp((A - t) / k))))", "log_ftol": 1e-08, "errors": [1.2369308703579719e-05, 0.0003474944757801338, 1.1655473499421627, 0.2996582378944226], "covariance": [[1.52999797804453e-10, -3.862350203770982e-09, -1.3033936559517057e-05, -3.572934537726665e-06], [-3.862350203770996e-09, 1.2075241069770999e-07, 0.00040483086911953075, 0.00010179467364407456], [-1.3033936559517116e-05, 0.0004048308691195305, 1.358500624957198, 0.3428816728978453], [-3.5729345377266708e-06, 0.00010179467364407423, 0.3428816728978445, 0.08979505953799036]]}