%樣本標(biāo)準(zhǔn)化函數(shù)
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%輸入X為樣本矩陣（行向量樣本），index為標(biāo)準(zhǔn)化方法
%輸出X1為標(biāo)準(zhǔn)化后的樣本矩陣
function [X1]=XStd(X,index)
[n,m]=size(X);
switch index
    case '標(biāo)準(zhǔn)差標(biāo)準(zhǔn)化'
        BZCData=std(X);
        X1=X./BZCData(ones(n,1),:);
    case '總和標(biāo)準(zhǔn)化'
        SUMData=sum(X);
        X1=X./SUMData(ones(n,1),:);
    case '最大值標(biāo)準(zhǔn)化'
        MAXData=max(X);
        X1=X./MAXData(ones(n,1),:);
    case '模標(biāo)準(zhǔn)化'
        MOData=sqrt(sum(X.^2));
        X1=X./MOData(ones(n,1),:);
    case '中心標(biāo)準(zhǔn)化'
        MEANData=mean(X);
        X1=X-MEANData(ones(n,1),:);
    case '級差標(biāo)準(zhǔn)化'
        MEANData=mean(X);
        TempData1=X-MEANData(ones(n,1),:);
        Temp=minmax(X');
        TempData2=(Temp(:,2)-Temp(:,1))';
        X1=TempData1./TempData2(ones(n,1),:);
    case '級差正規(guī)化'
        MINData=min(X);
        TempData1=X-MINData(ones(n,1),:);
        Temp=minmax(X');
        TempData2=(Temp(:,2)-Temp(:,1))';
        X1=TempData1./TempData2(ones(n,1),:);
end