[mlpack-git] master: Add sanity check for #428. (db7f910)

[gitdub at big.cc.gt.atl.ga.us]

Repository : https://github.com/mlpack/mlpack

On branch  : master
Link       : https://github.com/mlpack/mlpack/compare/3d239640213ec47c6756803bdb50df8e16b94e75...db7f910467dec872a93cf47427b3d6196fd52b39

>---------------------------------------------------------------

commit db7f910467dec872a93cf47427b3d6196fd52b39
Author: ryan <ryan at ratml.org>
Date:   Wed May 27 21:16:51 2015 -0400

    Add sanity check for #428.


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db7f910467dec872a93cf47427b3d6196fd52b39
 .../methods/logistic_regression/logistic_regression_function.cpp   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/mlpack/methods/logistic_regression/logistic_regression_function.cpp b/src/mlpack/methods/logistic_regression/logistic_regression_function.cpp
index c3e1c58..f815fe0 100644
--- a/src/mlpack/methods/logistic_regression/logistic_regression_function.cpp
+++ b/src/mlpack/methods/logistic_regression/logistic_regression_function.cpp
@@ -18,6 +18,13 @@ LogisticRegressionFunction::LogisticRegressionFunction(
     lambda(lambda)
 {
   initialPoint = arma::zeros<arma::mat>(predictors.n_rows + 1, 1);
+
+  // Sanity check.
+  if (responses.n_elem != predictors.n_cols)
+    Log::Fatal << "LogisticRegressionFunction::LogisticRegressionFunction(): "
+        << "predictors matrix has " << predictors.n_cols << " points, but "
+        << "responses vector has " << responses.n_elem << " elements (should be"
+        << " " << predictors.n_cols << ")!" << std::endl;
 }
 
 LogisticRegressionFunction::LogisticRegressionFunction(