{"coeffs": [-0.00783731324312946, 6.663283844694196e-06, -4.455436875148913, 0.6281968467255635], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.899630426940452, 1.4656481640649397e-06, 475.9867274169146, 0.47223552025240095], "covariance": [[34.80563917448158, -7.362101452914607e-06, 2808.1419521342987, -2.6942084937665003], [-7.362101446121895e-06, 2.1481245408269286e-12, -0.0005945744696454768, 6.612511445633691e-07], [2808.141952127267, -0.000594574470192558, 226563.36467706418, -217.46498770257614], [-2.6942084926905796, 6.612511448618299e-07, -217.46498761631446, 0.22300638658805577]]}