{"coeffs": [-7.025566315718223e-07, -4.6006335338411605e-08, -0.29209733483115363, 0.06123334033171012], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [1.1791685731195401e-07, 4.426252936101232e-08, 0.04154521284293424, 0.034871877045293716], "covariance": [[1.3904385238327723e-14, -1.0429671189801803e-15, 3.502213588305448e-09, -2.841695175193784e-09], [-1.04296711898018e-15, 1.9591715054344777e-15, 2.6283990205869276e-10, 6.243923722924447e-10], [3.502213588305449e-09, 2.6283990205869265e-10, 0.0017260047101647082, -0.0006021247572030672], [-2.8416951751937835e-09, 6.243923722924447e-10, -0.0006021247572030668, 0.0012160478086620829]]}