Error op. sys. refuses to provide memory
==Attempt 2==
foreach x of varlish matchfilter{
if x==1{
foreach matchfilter[_n]==0{
if year[_n]==year[_x] & industrygroup3[_n]==industrygroup3[_x]{
if nopatents[_n]/nopatents[_x]<1.1 | nopatents[_n]/nopatents[_x]>1/1.1{
gen delta=abs(logitpw[_n]-logitpw[_x]
m=gvkey[_min(delta)]}
}
}
}
Error invalid syntax