randomdirection.m.svn-base

来自「a function inside machine learning」· SVN-BASE 代码 · 共 12 行

function u = randomDirection(X, Y)
%A function to compute a vector with a random direction with a norm of 1
%
%inputs 
%X data matrix with examples as rows 
%Y labels matrix with output as rows 
%
%outputs 
%u the vector which maximises the emperical target alignment between X and Y 

u = rand(size(X, 2), 1)-0.5; 
u = u/norm(u);