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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkMixtureModelComponentBase_hxx
#define itkMixtureModelComponentBase_hxx
namespace itk
{
namespace Statistics
{
template <typename TSample>
MixtureModelComponentBase<TSample>::MixtureModelComponentBase()
{
m_Sample = nullptr;
m_MembershipFunction = nullptr;
m_MinimalParametersChange = 1.0e-06;
m_ParametersModified = true;
}
template <typename TSample>
void
MixtureModelComponentBase<TSample>::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Sample: ";
if (m_Sample != nullptr)
{
os << m_Sample << std::endl;
}
else
{
os << "not set." << std::endl;
}
os << indent << "Membership Function: ";
if (m_MembershipFunction != nullptr)
{
os << m_MembershipFunction << std::endl;
}
else
{
os << "not instantiated yet." << std::endl;
}
os << indent << "Weights Array: ";
os << m_Weights << std::endl;
os << indent << "Parameters are modified: " << m_ParametersModified << std::endl;
}
template <typename TSample>
void
MixtureModelComponentBase<TSample>::SetSample(const TSample * sample)
{
m_Sample = sample;
m_Weights = WeightArrayType(m_Sample->Size());
}
template <typename TSample>
const TSample *
MixtureModelComponentBase<TSample>::GetSample() const
{
return m_Sample;
}
template <typename TSample>
void
MixtureModelComponentBase<TSample>::SetParameters(const ParametersType & parameters)
{
if (m_Parameters != parameters)
{
m_Parameters = parameters;
this->AreParametersModified(true);
}
}
template <typename TSample>
bool
MixtureModelComponentBase<TSample>::AreParametersModified()
{
return m_ParametersModified;
}
template <typename TSample>
void
MixtureModelComponentBase<TSample>::AreParametersModified(bool flag)
{
m_ParametersModified = flag;
}
template <typename TSample>
void
MixtureModelComponentBase<TSample>::SetMembershipFunction(MembershipFunctionType * function)
{
m_MembershipFunction = function;
}
template <typename TSample>
auto
MixtureModelComponentBase<TSample>::GetMembershipFunction() -> MembershipFunctionType *
{
return m_MembershipFunction;
}
template <typename TSample>
inline double
MixtureModelComponentBase<TSample>::Evaluate(MeasurementVectorType & measurements)
{
return m_MembershipFunction->Evaluate(measurements);
}
template <typename TSample>
inline void
MixtureModelComponentBase<TSample>::SetWeight(unsigned int index, double value)
{
if (index < m_Weights.size())
{
(m_Weights)[index] = value;
}
else
{
itkExceptionMacro("Weight array is not allocated.");
}
}
template <typename TSample>
inline double
MixtureModelComponentBase<TSample>::GetWeight(unsigned int index) const
{
if (index < m_Weights.Size())
{
return m_Weights[index];
}
else
{
itkExceptionMacro("Weight array is not allocated.");
}
}
template <typename TSample>
void
MixtureModelComponentBase<TSample>::Update()
{
this->GenerateData();
}
} // end of namespace Statistics
} // end of namespace itk
#endif
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