+ t->missing_type = dsc->missing_type;
+ t->include_user_missing = dsc->include_user_missing;
+ if ( t->missing_type == DSC_LISTWISE )
+ {
+ t->var_cnt = dsc->var_cnt;
+ t->vars = xmalloc(t->var_cnt * sizeof *t->vars);
+ for (i = 0; i < t->var_cnt; i++)
+ t->vars[i] = dsc->vars[i].v;
+ }
+ else
+ {
+ t->var_cnt = 0;
+ t->vars = NULL;
+ }
+