permutedata.m.svn-base

来自「a function inside machine learning」· SVN-BASE 代码 · 共 16 行

function [X, Y] = permuteData(X, Y, params)
%Permute examples in data and labels 
%inputs
% X is an (m x n) matrix whose rows are the training inputs
% Y is (m x 1) vector containing the corresponding output labels

% outputs
% X permuted X
% Y permuted Y

numExamples = size(X, 1); 

permutationVector = randperm(numExamples);
X = X(permutationVector, :); 
Y = Y(permutationVector, :);