﻿功能:按行排序

格式:Sortrow2(A,n)

说明:按矩阵A的第n行的数据进行降序排序.

例子:
a  =
  [87.3863717948023  95.8052166252421  23.6229737864914  85.4205045781194
   3.64686665295012  17.1624857546587  22.439365891013   92.7933115012913
   67.3231028799541  44.7266189589755  1.24797462543844  99.8351981396951
   7.5839684845805   37.9172040791797  69.4860997933364  61.0144743048653 ]
sortrow2(a,2)//按第2行的数据进行排序
ans  =
  [85.4205045781194  23.6229737864914  95.8052166252421  87.3863717948023
   92.7933115012913  22.439365891013   17.1624857546587  3.64686665295012
   99.8351981396951  1.24797462543844  44.7266189589755  67.3231028799541
   61.0144743048653  69.4860997933364  37.9172040791797  7.5839684845805]