没用过这个方法

其实是这样的，因为有些数据不是每一年都有记载，有些五年一次，请问你知道该怎么办吗？其他的variable就每年都有，就只有这个它是五年一次。

http://forums.eviews.com/viewtopic.php?t=3799
Average observations: Set the low observation equal to the average of the observations in the corresponding high observations. i.e. take the average of Jan 2009, Feb 2009, and March 2009 and put them into 2009Q1.
Sum observations: Set the low observation equal to the sum of the observations in the corresponding high observations. i.e. take the sum of Jan 2009, Feb 2009, and March 2009 and put them into 2009Q1.
First observation: Set the low observation equal to the value in the first of the corresponding high observations. i.e. take the value of Jan
2009 and put it into 2009Q1.
Last observation: Set the low observation equal to the value in the last of the corresponding high observations. i.e. take the value of March 2009 and put it into 2009Q1.
Max observation: Set the low observation equal to the maximum of the corresponding high observations. i.e. take the max of Jan 2009, Feb 2009 and March 2009 and put it into 2009Q1.
Min observation: Set the low observation equal to the minimum of the corresponding high observations. i.e. take the min of Jan 2009, Feb 2009 and March 2009 and put it into 2009Q1.