{"coeffs": [-0.014451186356245378, 0.00015732138718296953, -15.188288587125163, 3.326629777829453], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [15.57545613286241, 0.0013913452893815333, 3859.4116967487334, 67.10336903008933], "covariance": [[242.59483374672126, -0.02164826856209608, 60112.03428909913, -1044.8927267073577], [-0.021648268325139393, 1.9358417142841826e-06, -5.364531607229485, 0.09333966994805704], [60112.03426818288, -5.364531664078115, 14895058.645000938, -258920.23203039123], [-1044.8927209817027, 0.093339670457729, -258920.23070173344, 4502.86213518835]]}