{"coeffs": [-7.266047374638727e-07, -4.042318363175058e-08, -0.22862042230687413, 0.028086034668095484], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [5.7236547643660995e-08, 3.9317371501250305e-08, 0.018341496361386826, 0.015938043557451674], "covariance": [[3.276022386165075e-15, -1.2611527665654452e-16, 3.873381893083395e-10, -3.2512589924127745e-10], [-1.2611527665654457e-16, 1.5458557017673297e-15, 1.7392145409843473e-10, 1.5907812028981848e-10], [3.873381893083395e-10, 1.7392145409843476e-10, 0.0003364104887747662, -2.094498304297107e-05], [-3.2512589924127745e-10, 1.5907812028981848e-10, -2.094498304297106e-05, 0.00025402123243922683]]}