activs.m

来自「这是用matlab编写的支持向量机的函数工具箱」· M 代码 · 共 19 行

function activs ( w ) 

# activs ( w )
#	silently finds activities of a single neuron with  weight vector w
#       using global data in x,t and gives errors

	global x ;
	global t ;

	a = x * w  ;
	y = sigmoid(a)  ;
	e = t - y   ;
	d = ( y>0.5 ) ;
	err = ( d != t ) ;
	errs = sum(err)
# (d .- e).^2 )

endfunction