请熟悉金融matlab的同学帮忙看看，最好能大体说一下实现思路。如何能指点实现方法更好！！谢谢~~！有偿编程最好，组号是学金融的同学，可留言可PM，论坛币也行。

Use some of the Peer Group data to construct a 20 variable VaR function, minimize it using MATLAB Optimization Tool Box

（我不明白这是让我实现什么？20 variable VaR function需要自己构建还是怎么着）.

Choose sub-time intervals to compare the performance of thus formed portfolio against equal-weight ETF.