1 // SPDX-License-Identifier: Apache-2.0
2 //
3 // Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
4 // Copyright 2008-2016 National ICT Australia (NICTA)
5 //
6 // Licensed under the Apache License, Version 2.0 (the "License");
7 // you may not use this file except in compliance with the License.
8 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 // ------------------------------------------------------------------------
17 
18 
19 //! \addtogroup op_princomp
20 //! @{
21 
22 
23 
24 class op_princomp
25   : public traits_op_default
26   {
27   public:
28 
29   template<typename T1>
30   inline static bool
31   direct_princomp
32     (
33            Mat<typename T1::elem_type>&     coeff_out,
34            Mat<typename T1::elem_type>&     score_out,
35            Col<typename T1::pod_type>&     latent_out,
36            Col<typename T1::elem_type>&     tsquared_out,
37     const Base<typename T1::elem_type, T1>& X
38     );
39 
40 
41   template<typename T1>
42   inline static bool
43   direct_princomp
44     (
45            Mat<typename T1::elem_type>&     coeff_out,
46            Mat<typename T1::elem_type>&     score_out,
47            Col<typename T1::pod_type>&     latent_out,
48     const Base<typename T1::elem_type, T1>& X
49     );
50 
51   template<typename T1>
52   inline static bool
53   direct_princomp
54     (
55            Mat<typename T1::elem_type>&     coeff_out,
56            Mat<typename T1::elem_type>&     score_out,
57     const Base<typename T1::elem_type, T1>& X
58     );
59 
60   template<typename T1>
61   inline static bool
62   direct_princomp
63     (
64            Mat<typename T1::elem_type>&     coeff_out,
65     const Base<typename T1::elem_type, T1>& X
66     );
67 
68   template<typename T1>
69   inline static void
70   apply(Mat<typename T1::elem_type>& out, const Op<T1,op_princomp>& in);
71   };
72 
73 
74 
75 //! @}
76