[mlpack] 120/149: Check frobenius norm overall instead of just for one element.

[Barak A. Pearlmutter]

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bap pushed a commit to branch svn-trunk
in repository mlpack.

commit 350b97b6f765e75ea4a6ccbe298c885e163ba611
Author: rcurtin <rcurtin at 9d5b8971-822b-0410-80eb-d18c1038ef23>
Date:   Tue Nov 25 16:22:37 2014 +0000

    Check frobenius norm overall instead of just for one element.
    
    
    git-svn-id: http://svn.cc.gatech.edu/fastlab/mlpack/trunk@17410 9d5b8971-822b-0410-80eb-d18c1038ef23
---
 src/mlpack/tests/svd_batch_test.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/mlpack/tests/svd_batch_test.cpp b/src/mlpack/tests/svd_batch_test.cpp
index 70d9a3a..95db81e 100644
--- a/src/mlpack/tests/svd_batch_test.cpp
+++ b/src/mlpack/tests/svd_batch_test.cpp
@@ -166,10 +166,8 @@ BOOST_AUTO_TEST_CASE(SVDBatchNegativeElementTest)
 
   arma::mat result = m1 * m2;
 
-  // 5% element-wise tolerance.
-  for (size_t i = 0; i < 3; i++)
-    for (size_t j = 0; j < 3; j++)
-      BOOST_REQUIRE_CLOSE(test(i, j), result(i, j), 5.0);
+  // 2% tolerance on the norm.
+  BOOST_REQUIRE_CLOSE(arma::norm(test, "fro"), arma::norm(result, "fro"), 2.0);
 }
 
 BOOST_AUTO_TEST_SUITE_END();

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