Dear Grtl users, Probably it is a stupid question, but … how can I restrict data analyses within a loop affecting several response variables $i, when the restriction affects each variable $i? the line “smpl $i > 0 --restrict” does not work within this loop (from response variable 39 to response variable 145): loop i=39..145 --progressive smpl $i > 0 --restrict quantreg {.95} $i const TMINstd TMINstd2 PRECmedINVstd PRECINVstd2 –robust … more commands … endloop PD: I have a very large sample size (n=1690) Thanks you very much in advance Luis M. Carrascal <http://www.lmcarrascal.eu/> http://www.lmcarrascal.eu/ email: <mailto:lmcarrascal@mncn.csic.es> lmcarrascal(a)mncn.csic.es Dept. Biogeografía y Cambio Global MNCN-Consejo Superior de Investigaciones Científicas C/ Pinar 25, 3ª planta. 28006 Madrid. SPAIN Tfno: 34 91 5668963, Fax: 91 5645078