clear;
%--------------------------------油價序列零均值化后的數據如下----------------------------------------%：
P=[?19.5900???14.9100???15.7400???15.4000???13.0600???19.0700???15.2800???15.8200???12.7700???12.0500...??
????11.6900???13.8500???13.8500???10.0700????9.1700???10.7900???13.4400???21.1700???18.6400???13.2100...??
????15.5400???21.9400???23.1100???18.6400???14.9400???16.9000???15.4600???11.1500???13.1300???12.4800...??
????12.9500???12.5900???10.5800???10.5800???12.3900???15.5300???13.0600???10.2200???16.3300???19.7200...
????21.3100???18.8400???24.8400???15.6700???15.5700???12.7300???13.5600???15.5400???17.2200???12.1400...
????11.0700???12.0200???11.5500????6.9200???10.3300???8.3800????12.1100???11.4600???12.7500???13.3200...
????13.0000???11.9000???11.7900???12.5500???11.8400???11.25

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????13793??2006-05-24?20:40??AR.m

?????文件????????218??2007-01-22?19:53??www.pudn.com.txt

-----------?---------??----------?-----??----

????????????????14011????????????????????2