lcache = pspp_linreg_cache_alloc (X->m->size1, X->m->size2);
lcache->indep_means = gsl_vector_alloc (X->m->size2);
lcache->indep_std = gsl_vector_alloc (X->m->size2);
lcache->depvar = (const struct variable *) depvar;
/*
lcache = pspp_linreg_cache_alloc (X->m->size1, X->m->size2);
lcache->indep_means = gsl_vector_alloc (X->m->size2);
lcache->indep_std = gsl_vector_alloc (X->m->size2);
lcache->depvar = (const struct variable *) depvar;
/*