Dear all,
I want to use -tuples- to do model selection.My code is here,
Code:
webuse grunfeld,clear
global m "mvalue kstock L.mvalue  c.mvalue#c.mvalue c.kstock#c.kstock c.mvalue#c.kstock L.kstock"
tuples $m i.year,cond(1&2&8 !(4&!1)  !(5&!2)  !(6&(!(1&2)))) min(5)
forval i=1/`ntuples'{
    xtreg invest `tuple`i'',fe r
}
I want to select the models in which p-values of mvalve and kstock are smaller than 0.1(statisc significant) ,
and both the coefficients of mvalue and kstock are positive .Then print the selected results on the screen.Maybe print like

model beta beta_se p-value
1 0.4521 0.0234 0.000***
3
6
12
...

Anyone can give some suggestions?Many thanks in advance.



Best regards.
Raymond