推荐回答(5个)
在EXCEL中没有现成的函数,需要自己分步计算。
步骤如下:
1.:求出各变量(指标)的算术平均值(数学期望)xi和标准差si ;
2:进行标准化处理:
zij=(xij-xi)/si
其中:zij为标准化后的变量值;xij为实际变量值。
3.:将逆指标前的正负号对调。
标准化后的变量值围绕0上下波动,大于0说明高于平均水平,小于0说明低于平均水平。
另外这个标准化在SPSS中很容易实现
极值处理法
该种方法的算法即标准化公式如附图所示,注:对于指标值恒定的情况不适用。
这里以我国2007年中部地区6省的税收数据为例进行计算。易知,附图中的税收指标为极大型数据。所以采用的公式为x=(x-min)/(Max-min),这样标准化后的数据最大值为1,最小值为0
使用Max,Min函数分别求出数据矩阵中每列中的最大值和最小值。
Max 146.1136 184.2366 102.9228 30.2578 25.8857 42.8733 15.656 7.8004 18.2303 14.9975 1.9689 17.1054 35.0698 3.3696
Min 53.0534 95.0788 37.8106 14.8271 2.8286 17.0098 5.7824 3.1799 4.1246 1.1311 0.3081 1.7933 5.5753 0.0874
再求出极值处理法的分母即最大值与最小值的差值
max-min 93.0602 89.1578 65.1122 15.4307 23.0571 25.8635 9.8736 4.6205 14.1057 13.8664 1.6608 15.3121 29.4945 3.2822
4
使用每列中的数值与最小值的差比上分母即可求出标准化后的数据。公式举例:值=(B6-$B$13)/$B$14。如附图所示为使用极值处理法后的前后数据对比。
请问您想进行什么样的标准化处理?是格式?内容?还是位置?
数据标准化处理方法:
第一步:求出各变量(指标)的算术平均值(数学期望)xi和标准差si ;
第二步:进行标准化处理:
xij¢=(xij-xi)/si
其中:xij¢为标准化后的变量值;xij为实际变量值。
第三步:将逆指标前的正负号对调。
标准化后的变量值围绕0上下波动,大于0说明高于平均水平,小于0说明低于平均水平
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