search for: x2_1995

Displaying 1 result from an estimated 1 matches for "x2_1995".

Did you mean: x1_1995
2009 Mar 05
1
Does R have function or method to finish my task?
...th X1, X2, X3 in the same year as Y, but also may be related with X1, X2, X3 and Y in the previous one , two or more years as Y. But which year has the closest relationship is not know and this may be one of the analysis aim. Take Year=1995 as an example, Y_1995 may be related with X1_1995 , X2_1995 , X3_1995, X1_1994 , X2_1994 , X3_1994, Y_1994, (previous one year) X1_1993 , X2_1993 , X3_1993, Y_1993 (previous two years) ... ... (previous more years) Pay attention to the situation that Y itself may also affect its own value of the next several year...