plot_multichan.m

% Simple MATLAB function for plot multi-channel time-series data
%
% Usage:
% plot_multichan( y ) % <- y: signal
% plot_multichan( x, y ) % <- x: time
%
% Example:
% y = randn([20, 2000]);
% plot_multichan(y);
%
% Written by Hio-Been han, hiobeen.han@kaist.ac.kr, 2020-03-07
%