From: Michael Orlitzky <michael@orlitzky.com>
Date: Sun, 5 May 2013 02:52:06 +0000 (-0400)
Subject: Check for error flag in rank_k_approximation().
X-Git-Url: http://gitweb.michael.orlitzky.com/?p=octave.git;a=commitdiff_plain;h=9c80bead819622e76966fe80b75bf422bc78cdcc;ds=sidebyside

Check for error flag in rank_k_approximation().
---

diff --git a/rank_k_approximation.m b/rank_k_approximation.m
index 9883084..4443259 100644
--- a/rank_k_approximation.m
+++ b/rank_k_approximation.m
@@ -23,6 +23,11 @@ function Ak = rank_k_approximation(A,k)
     return;
   end
 
-  [U, S, V] = svds(A, k);
-  Ak = U*S*V';
+  [U, S, V, flag] = svds(A, k);
+
+  if (flag == 0)
+    Ak = U*S*V';
+  else
+    error('Could not compute the rank-k approximation.');
+  end
 end