{"coeffs": [-4.288712140330772e-07, -1.5838520537523058e-08, -0.29649494056366216, 0.02333525679272895], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.622176326397937e-08, 8.80068690878735e-09, 0.006764837783060766, 0.005959938041205424], "covariance": [[2.631456033925907e-16, -7.3112044912155e-18, 4.339714531904064e-11, -3.6502820565498707e-11], [-7.311204491215501e-18, 7.745209006650105e-17, 1.1740102644402484e-11, 1.1280862987283301e-11], [4.3397145319040635e-11, 1.1740102644402484e-11, 4.5763030231126496e-05, -4.547413930476345e-06], [-3.65028205654987e-11, 1.12808629872833e-11, -4.547413930476347e-06, 3.5520861455007547e-05]]}