Merge pull request #3080 from SuvarshaChennareddy/fixing-comment

Fix comments in files that implement SVD methods for PCA

COPYRIGHT.txt

@@ -145,6 +145,7 @@ Copyright:
   Copyright 2021, Mark Fischinger <markfischinger@gmail.com>
   Copyright 2021, Muhammad Fawwaz Mayda <maydafawwaz@gmail.com>
   Copyright 2021, Roshan Nrusing Swain <swainroshan001@gmail.com>
+  Copyright 2021, Suvarsha Chennareddy <suvarshachennareddy@gmail.com>
 
 License: BSD-3-clause
   All rights reserved.

src/mlpack/methods/pca/decomposition_policies/exact_svd_method.hpp

@@ -45,7 +45,7 @@ class ExactSVDPolicy
              arma::mat& eigvec,
              const size_t /* rank */)
   {
-    // This matrix will store the right singular values; we do not need them.
+    // This matrix will store the right singular vectors; we do not need them.
     arma::mat v;
 
     // Do singular value decomposition.  Use the economical singular value

src/mlpack/methods/pca/decomposition_policies/quic_svd_method.hpp

@@ -57,7 +57,7 @@ class QUICSVDPolicy
              arma::mat& eigvec,
              const size_t /* rank */)
   {
-    // This matrix will store the right singular values; we do not need them.
+    // This matrix will store the right singular vectors; we do not need them.
     arma::mat v, sigma;
 
     // Do singular value decomposition using the QUIC-SVD algorithm.

src/mlpack/methods/pca/decomposition_policies/randomized_block_krylov_method.hpp

@@ -60,7 +60,7 @@ class RandomizedBlockKrylovSVDPolicy
              arma::mat& eigvec,
              const size_t rank)
   {
-    // This matrix will store the right singular values; we do not need them.
+    // This matrix will store the right singular vectors; we do not need them.
     arma::mat v;
 
     // Do singular value decomposition using the randomized block krylov SVD

src/mlpack/methods/pca/decomposition_policies/randomized_svd_method.hpp

@@ -61,7 +61,7 @@ class RandomizedSVDPolicy
              arma::mat& eigvec,
              const size_t rank)
   {
-    // This matrix will store the right singular values; we do not need them.
+    // This matrix will store the right singular vectors; we do not need them.
     arma::mat v;
 
     // Do singular value decomposition using the randomized SVD algorithm.