{"coeffs": [-1.6626368555856813e-08, -0.1795394223038199, 0.8920958398685175, 0.03144020776691813], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [4.406677918522584e-09, 556936.8885082277, 97529.14585726282, 0.03828311654158279], "covariance": [[1.941881027759453e-17, -0.0008920923486214978, 0.00015622076399003472, 7.368546784372494e-11], [-0.0008920928421731322, 310178697781.22595, -54317579032.59622, -20997.2977417471], [0.0001562208533426859, -54317579032.57297, 9511934291.647245, 3676.9854879573604], [7.368549703124791e-11, -20997.296072406953, 3676.9851955422428, 0.00146559701213641]]}