{"coeffs": [-1.171449353975532e-07, -4.227434880124567e-10, -0.2714741238800802, 0.01208714397561131], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [2.0468799840743034e-08, 1.2902447181992042e-08, 0.02784914935115131, 0.02258545310257434], "covariance": [[4.1897176692040206e-16, -4.6385348092679426e-18, 1.9625879148622013e-10, -1.5056956664980838e-10], [-4.6385348092679395e-18, 1.664731432840944e-16, 4.3270661325879845e-11, 2.932532127285383e-11], [1.9625879148622016e-10, 4.327066132587985e-11, 0.0007755751195827314, -0.00029904273773186585], [-1.505695666498084e-10, 2.9325321272853827e-11, -0.0002990427377318659, 0.000510102691848585]]}