ConditionalDistribution.cc

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// -*- C++ -*-

// ConditionalDistribution.cc
// 
// Copyright (C) *YEAR* *AUTHOR(S)* 
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// Copyright (C) *YEAR* *AUTHOR(S)* 
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// This file is part of the PLearn library. For more information on the PLearn
// library, go to the PLearn Web site at www.plearn.org

#include "ConditionalDistribution.h"

namespace PLearn {
using namespace std;

ConditionalDistribution::ConditionalDistribution() 
  :inherited()
{
   
}


PLEARN_IMPLEMENT_OBJECT(ConditionalDistribution, "ONE LINE DESCR", 
                        "You must call setInput to set the condition before using the distribution");


void ConditionalDistribution::makeDeepCopyFromShallowCopy(map<const void*, void*>& copies)
{
  inherited::makeDeepCopyFromShallowCopy(copies);
}


void ConditionalDistribution::setInput(const Vec& input)
{ PLERROR("setInput must be implemented for this ConditionalDistribution"); }


void ConditionalDistribution::use(const Vec& input, Vec& output)
{
  Vec x = input.subVec(0,input_part_size);
  Vec y = input.subVec(input_part_size,input.length()-input_part_size);
  setInput(x);
  if (use_returns_what=="l")
    output[0]=log_density(y);
  else if (use_returns_what=="d")
    output[0]=density(y);
  else if (use_returns_what=="c")
    output[0]=cdf(y);
  else if (use_returns_what=="s")
    output[0]=survival_fn(y);
  else if (use_returns_what=="e")
    output << expectation();
  else if (use_returns_what=="v")
    output << variance().toVec();
}

} // end of namespace PLearn

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