[Gretl-users] abs: where is the problem?

Hello, I tried to program a little request which looks like: script: loop foreach i x y ols $i const time --quiet genr t_$i = $coeff(time)/$stderr(time) if t_$i < abs(1.97) adf 8 $i --c --test-down else adf 8 $i --ct --test-down endif endloop :end script I define the request of the t-values as absolute values ( abs(1.97) ) but gretl does not consider this for negative ones. Though the t-value is e.g. -3.37 it does not take into account that the absolute value is bigger than 1.97. For positive t-values there is no problem. Do you know what the problem is? Cheers, Artur