﻿功能:对数据每一列进行标准化处理
 
格式:StandardScore(A)
A:为矩阵变量
 
说明:函数执行完毕对A每一列进行标准化处理
 
原理:
1、j=1
2、a=A[j]//即A的第j列为a
3、求a的平均值avg
4、求a的标准差sd
5、A[j]=(a-avg)/sd
6、j=j+1
7、如果j不大于A的列数则转至第2步
 
例子:
a =
[ 59.1241306900625    21.2859188305614    57.1719671400133    73.2800058896095
  72.8388998065325    56.2580781785110    31.8980860206755    89.9951592041157
  74.2959687366597    19.6523752620688    74.4386298462928    45.7937934183487
  61.3113896741119    43.7427747732693    42.9492420716906    10.3525488685596 ]
b=StandardScore(a)//回车得到a标准化后的结果
b =
[-0.99829169291597   -0.78313891865552    0.30204173339015    0.52916922714790
  0.76413336412868    1.18032214436275   -1.07155903517233    1.00924102342430
  0.95137492616224   -0.87485184834819    1.24046116536681   -0.26025550295381
 -0.71721659737495    0.47766862264096   -0.47094386358463   -1.27815474761839 ]