{"coeffs": [-3.5612952491672827e-07, -1.474509356067141e-08, -0.2155965651477576, 0.04908516120867491], "function": "lambda x, A, B, C, D: (D + ((C - D) / (1 + numpy.exp((B - x) / A))))", "log_ftol": 1e-08, "errors": [3.1164512943509356e-08, 1.9613453234351458e-08, 0.02467073440704106, 0.021548438115875836], "covariance": [[9.71226867006162e-16, -7.652272605450869e-17, 3.851147708661967e-10, -3.453973523837687e-10], [-7.652272605450868e-17, 3.8468754777609165e-16, 1.3295081304350853e-10, 1.538780931633492e-10], [3.851147708661967e-10, 1.3295081304350853e-10, 0.0006086451361827596, -8.243137711235019e-05], [-3.453973523837688e-10, 1.538780931633492e-10, -8.24313771123502e-05, 0.00046433518523373055]]}