matlab中rep函数的用法

% REP.m Replicate a matri% This function replicates a matrix in both dimensions. 

% Syntax: MatOut = rep(MatIn,REPN);

% Input parameters:
% MatIn - Input Matrix (before replicating)

% REPN - Vector of 2 numbers, how many replications in each dimension
% REPN(1): replicate vertically
% REPN(2): replicate horizontally

Example:

function MatOut = rep(MatIn,REPN)

MatIn = [1 2 3]
REPN = [1 2]: MatOut = [1 2 3 1 2 3]

REPN = [2 1]: MatOut = [1 2 3;
                                       1 2 3]

REPN = [3 2]: MatOut = [1 2 3 1 2 3;
                                       1 2 3 1 2 3;
                                      1 2 3 1 2 3]