www.gusucode.com > Matlab动力系统和时间序列分析工具箱 > Matlab动力系统和时间序列分析工具箱/lab432/toolbox/hist_1D.m

    function hist_1D(Y,k);

% HIST_1D(x,k) plot histogram for vector x using k bins
% by default k equal square root of time series length
%
% last modified 01.12.04



if nargin<2
    k=ceil(length(Y).^0.5);
end


m=min(Y); M=max(Y);
if m~=M
    X=m:(M-m)/k:M;
    hist(Y,X);
else
    hist(Y)
end