我想做一个GMM估计，
输入xtabond2 inno2 Lag_inno2 size2 averagegdp open Lag_averageprofit yr_dum1-yr_dum13, gmm(Lag_inno2,collapse) iv(size2 open averagegdp Lag_averageprofit yr_dum1- yr_dum13) noleveleq robust namata twostep

之后显示Favoring speed over space. To switch, type or click on mata: mata set matafavor space, perm.
namata invalid.r(198);
求鉴定！！谢谢！！