Changeset 2322 for branches/0.6-stable/yat/utility/PCA.h

Timestamp:

Sep 19, 2010, 3:18:22 AM (13 years ago)

Author:

Peter

Message:

docs typo: PCA only supports rows>=columns not the other way around. refs #216

File:

• branches/0.6-stable/yat/utility/PCA.h (modified) (2 diffs)

branches/0.6-stable/yat/utility/PCA.h

@@ -43 +43 @@
      this space, all Nx1 vectors will have dimension Mx1. Hence
      the projection will have dimension MxM where each column is 
-     a point in the new space. Also, it assumes that M>N. The opposite
-     problem is added in the functions: process_transposed_problem and
-     projection_transposed()...
+     a point in the new space.
+
+     \note Currently number of rows, N, must be larger (or equal) than
+     number of columns, M.
   */
   class PCA
@@ -105 +106 @@
        3: Calculate eigenvalues according to \n 
           \f$ \lambda_{ii} = s_{ii}/N_{rows} \f$ \n
-       4: Sort eigenvectors (from matrix V) according to descending eigenvalues\n
     */
     void process(void);