{"coeffs": [-6.612404037092343e-07, 0.1845746072246774, 1.9783270144537535, 0.12604445683333074], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.6655479808296829e-07, 3162.833148609249, 2167.2519389142603, 0.05373272212864216], "covariance": [[2.7740500764458334e-14, -0.00021577314492347832, -0.0001478657978381696, -4.758093917096453e-09], [-0.0002157731447226764, 10003513.525941495, 6854656.251671873, 161.30707094084113], [-0.00014786579770272718, 6854656.25167234, 4696980.966727621, 110.53455817011965], [-4.758093914758454e-09, 161.3070709861278, 110.53455820115941, 0.002887205427353871]]}