lwtDev::InputVectorPreprocessor Class Reference

#include <InputPreprocessor.h>

Collaboration diagram for lwtDev::InputVectorPreprocessor:

Public Member Functions
	InputVectorPreprocessor (const std::vector< Input > &inputs)
MatrixXd	operator() (const VectorMap &) const

Private Attributes
VectorXd	m_offsets
VectorXd	m_scales
std::vector< std::string >	m_names

Detailed Description

Definition at line 41 of file InputPreprocessor.h.

Constructor & Destructor Documentation

InputVectorPreprocessor()

lwtDev::InputVectorPreprocessor::InputVectorPreprocessor

(

const std::vector< Input > &

inputs

)

Definition at line 39 of file InputPreprocessor.cxx.

                                   :
    m_offsets(inputs.size()),
    m_scales(inputs.size())
  {
    size_t in_num = 0;
    for (const auto& input: inputs) {
      m_offsets(in_num) = input.offset;
      m_scales(in_num) = input.scale;
      m_names.push_back(input.name);
      in_num++;
    }
    // require at least one input at configuration, since we require
    // at least one for evaluation
    if (in_num == 0) {
      throw NNConfigurationException("need at least one input");
    }
  }

Member Function Documentation

operator()()

MatrixXd lwtDev::InputVectorPreprocessor::operator()

(

const VectorMap &

in

)

const

Definition at line 57 of file InputPreprocessor.cxx.

                                                                        {
    using namespace Eigen;
    if (in.size() == 0) {
      throw NNEvaluationException("Empty input map");
    }
    size_t n_cols = in.begin()->second.size();
    MatrixXd inmat(m_names.size(), n_cols);
    size_t in_num = 0;
    for (const auto& in_name: m_names) {
      if (!in.count(in_name)) {
        throw NNEvaluationException("can't find input: " + in_name);
      }
      const auto& invec = in.at(in_name);
      if (invec.size() != n_cols) {
        throw NNEvaluationException("Input vector size mismatch");
      }
      inmat.row(in_num) = Map<const VectorXd>(invec.data(), invec.size());
      in_num++;
    }
    if (n_cols == 0) {
        return MatrixXd(m_names.size(), 0);
    }
    return m_scales.asDiagonal() * (inmat.colwise() + m_offsets);
  }

Member Data Documentation

m_names

std::vector<std::string> lwtDev::InputVectorPreprocessor::m_names

private

Definition at line 50 of file InputPreprocessor.h.

m_offsets

VectorXd lwtDev::InputVectorPreprocessor::m_offsets

private

Definition at line 48 of file InputPreprocessor.h.

m_scales

VectorXd lwtDev::InputVectorPreprocessor::m_scales

private

Definition at line 49 of file InputPreprocessor.h.

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The documentation for this class was generated from the following files:

• InputPreprocessor.h
• InputPreprocessor.cxx