On Tue, 20 Apr 2010, denis joubert wrote:
 how to do lags like the ihm when learning a model with libgretl ?
What is "ihm"?
 is it equal to create new columns shifted with n element (where n is
the
 lag) like this :
 real data lags1   lags2
       7         8           4
       8         4           1
       4         1           5
       1         5
       5 
Sorry, but I can't make sense of this without further explanation.
I would expect something like this:
t data lag1 lag2
1 100  -    -
2 102  100  -
3 107  102  100
4 110  107  102
5 115  110  107
Allin Cottrell