{"coeffs": [-5.503885131756158e-07, -1.9490990089973513e-08, -0.28278649358255215, 0.062108528892681876], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.1365396299661394e-08, 8.882073314317502e-09, 0.009803684180567433, 0.008357508355527211], "covariance": [[4.564801590415847e-16, -3.7660330616679e-17, 1.4375035219441248e-10, -1.2040840298110447e-10], [-3.7660330616679e-17, 7.889122636091111e-17, 1.4700768250101686e-11, 3.065681212198012e-11], [1.4375035219441246e-10, 1.470076825010169e-11, 9.611222351230813e-05, -3.0723131344884097e-05], [-1.2040840298110444e-10, 3.0656812121980114e-11, -3.072313134488408e-05, 6.984794591270715e-05]]}