nobias.m

来自「智能微粒群为最小二乘支持向量机调参的示例程序（LSSVM+PSO）」· M 代码 · 共 23 行

function nb = nobias(ker)
%NOBIAS returns true if SVM kernel has no implicit bias 返回的是SVM核函数是否有非隐含偏项
%
%  Usage: nb = nobias(ker)
%
%  Parameters: ker - kernel type
%              
%  Author: Steve Gunn ([e-mail])

  if (nargin ~= 1) % check correct number of arguments
     help nobias
  else
     
    switch lower(ker)
      case {'linear','rbf'}
%,'anovaspline1','anovaspline2','anovaspline3'}
        nb = 1;%只有线性和径向基核函数具有等式约束
      otherwise
        nb = 0;
    end

  end