﻿功能:把矩阵里的数据按列求和

格式:
Colsum(A,n)
Colsum(A)
A:操作的矩阵变量
n:求和时每个元素取的次方数,默认为1

说明:如果矩阵每一列包含的元素分别为a1,a2,……  则每一列对应的求和为 a1^n+a2^n+……

例子:

a =
 [ 69.4217675688778   56.4157324174492   74.2530118554146   0.268565211570154
   10.7634417297148   51.8315212111136   41.8493485738753   66.1067323135709
   23.9785817563434   1.3839753816761    22.599195513222    2.99800573987793
   36.3890803588503   4.62273420049936   87.5566156988761   99.5737301649403 ]
   
b=ColSum(a)//回车后得到如下结果
b =
 [ 140.552871413786   114.253963210738   226.258171641388   168.947033429959 ]