rshift.m

小波变换的模极大值判断冲击函数、阶跃函数、三角形函数的奇异性

function y = rshift(x)
% rshift -- Circular right shift of 1-d signal
%  Usage
%    r = rshift(x)
%  Inputs
%    x   1-d signal
%  Outputs
%    r   1-d signal 
%        r(i) = x(i-1) except r(1) = x(n)
%

	n = length(x);
	y = [ x(n) x( 1: (n-1) )];

%
% Copyright (c) 1993. Iain M. Johnstone
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