On Wed, 2 Feb 2011, Allin Cottrell wrote: > loop j=1973..2006 > smpl $j:1 $j:12+1 > list OKstocks = null > loop foreach i r_AEX_INDE..r_ZEELAND_ > n = sum(ok($i)) > if n == 13 > OKstocks = OKstocks $i > endif > if nelem(OKstocks) > 0 > store "/Documents/data/stocks_valid_$j.gdt" OKstocks > endif > endloop > endloop Sorry, I messed that up, it should be loop j=1973..2006 smpl $j:1 $j:12+1 list OKstocks = null loop foreach i r_AEX_INDE..r_ZEELAND_ n = sum(ok($i)) if n == 13 OKstocks = OKstocks $i endif endloop if nelem(OKstocks) > 0 store "/Documents/data/stocks_valid_$j.gdt" OKstocks endif endloop Allin Cottrell _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users