?? circ.m
字號:
function y = circ(x, n)% circ -- Circularly shift the elements of a vector.%% Usage% y = circ(x, n)%% Inputs% x signal vector.% n shift factor. + is right or down, - is left or up.%% Outputs% y shifted vector% Copyright (C) -- see DiscreteTFDs/Copyrighterror(nargchk(1, 2, nargin));x = x(:);N = length(x);n = rem(n,N);if n<0, n = n+N;endy = [x(N-n+1:N); x(1:N-n)];
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