hist_1d.m

主成分分析和偏最小二乘SquaresPrincipal成分分析（ PCA ）和偏最小二乘（ PLS ）

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