invrelerr_snn.m

来自「神经网络的工具箱, 神经网络的工具箱,」· M 代码 · 共 26 行

function [yl, yu] = invrelerr_snn(y_av, e_max)
%INVRELERR_SNN the inverse of the relative error.
%
% Syntax
%
%  [yl, yu] = invrelerr_snn(y_av, err)
%
% Description
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%  INVRELERR_SNN takes
%   y_av     - error is around y_av
%   err      - relative error
%  and returns
%   yl       - lowest y for which relerr_snn(y, y_av) = err
%   yu       - highest y for which relerr_snn(y, y_av) = err
%  
% See also
%
%   RELERR_SNN
%


tmp = sqrt(2*e_max);
yu = y_av .* (1 + tmp);
yl = y_av .* (1 - tmp);