{"coeffs": [-6.532709045730644e-08, 2.9563843309749772e-09, -0.3355515271240209, 0.001556526606651631], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.703758663086178e-08, 9.524041055556644e-09, 108950.7540625242, 33383.24719130178], "covariance": [[2.9027935820412006e-16, 1.0591695930315097e-26, 1.7483363535577492e-10, -1.4642295245091839e-12], [1.0560301515500514e-26, 9.070735802792853e-17, 0.0002515579362068616, 7.707905073382113e-05], [1.746320616090645e-10, 0.0002515579362077313, 11870266810.792633, 3637129954.547863], [-1.4862303115665063e-12, 7.707905073266786e-05, 3637129954.547863, 1114441193.0355582]]}