kdy504 发表于 2009-11-4 11:32 
这学期在学习Tsay的《Analysis of Financial Time Series》,也在自学SAS/ETS,是参照Manual学习的,但是发现manual 上面很多东西介绍的不是很详细,时间序列分析的很多东西仍不知道该如何处理,比如如何用SAS来考察结构变化,用AUTOREG来做GARCH分析也不是很清楚。现在感觉最需要一本能针对金融时间序列分析的专门SAS教材,要比Manual详细的,不知有没有这样的书呢?各位可以推荐一下,也可以传授下用SAS来进行时间序列分析的心得和经验。谢谢!
The autoreg is a good procedure to estimate garch models.
You may go to SAS/ETS/proc autoreg procedure in online help, then go to "details section" where it has details for each model specification.
Also arima procedure may help you to do a unit root test before you do any real analysis on time series.
Besides, the proc model also can deal arch-garch models with many different error assumptions.
If you want to write your own ML estimation programs, you can use SAS "proc nlmixed".
Here is a SAS website that has many examples.
http://support.sas.com/rnd/app/examples/ets/garchex/