{"coeffs": [-0.5388289613629841, 0.002248304094478323, -0.06764574217214589, 0.03210709241606922], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.5307374339615292e-07, 1.3003848386780484e-07, 7.6474855623125e-08, 6.653649780878807e-08], "covariance": [[0.004909430061839496, -0.0002575539450697944, 0.0008317863668181972, -0.0006839506109623102], [-0.00025755394506979417, 0.0035430188787559324, 0.0005815439795216058, 0.0005579087333501174], [0.000831786366818197, 0.0005815439795216058, 0.0012253693218873098, -5.95201326328608e-05], [-0.0006839506109623102, 0.0005579087333501171, -5.952013263286077e-05, 0.0009275760940206225]]}