{"coeffs": [-0.0005502053629123736, 1.4332208049676083e-07, -1.5094416283137013, 0.18879529997652877], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1521442006348166, 2.1318599222598795e-08, 396.1764449664082, 0.1208854251033808], "covariance": [[1.3274362590564406, -1.1323384272919025e-08, 456.4519816528685, -0.11597391550674951], [-1.1323384274032786e-08, 4.544826728137899e-16, -3.902048146943471e-06, 2.067384644987588e-09], [456.4519816529039, -3.902048146557104e-06, 156955.77554622147, -39.914357231073545], [-0.1159739155112295, 2.067384644925525e-09, -39.914357232610946, 0.014613286002425088]]}