From 9aca271850149ebf23d38e0e8013bad2be50d891 Mon Sep 17 00:00:00 2001
From: adamwang15 <adamwang15@gmail.com>
Date: Sat, 10 Aug 2024 01:37:44 +1000
Subject: [PATCH] separate ZF #43

---
 src/restrictions_zero.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/restrictions_zero.cpp b/src/restrictions_zero.cpp
index 7a07cd7..c75c02d 100644
--- a/src/restrictions_zero.cpp
+++ b/src/restrictions_zero.cpp
@@ -37,11 +37,12 @@ arma::colvec zero_restrictions(
   
   mat A0 = reshape(vec_structural.rows(0, N * N - 1), N, N);
   
-  arma::field<arma::mat> ZF = ZIRF(Z, inv(A0.t()));
+  field<mat> ZF = ZIRF(Z, inv(A0.t()));
   
   vec z = ZF(0).col(0);
   for (int j = 1; j < ZF.n_elem; j++) {
-    z = join_vert(z, ZF(j).col(j));
+    mat ZF_j = ZF(j);
+    z = join_vert(z, ZF_j.col(j));
   }
   
   return z;