Upsilon/apps/probability/calculation/discrete_calculation.cpp

#include "discrete_calculation.h"
#include <assert.h>
#include <ion.h>
#include <math.h>

namespace Probability {

DiscreteCalculation::DiscreteCalculation() :
  Calculation(),
  m_abscissa(0.0f),
  m_result(0.0f)
{
  compute(0);
}

Calculation::Type DiscreteCalculation::type() {
  return Type::Discrete;
}

int DiscreteCalculation::numberOfParameters() {
  return 2;
}

int DiscreteCalculation::numberOfEditableParameters() {
  return 1;
}

I18n::Message DiscreteCalculation::legendForParameterAtIndex(int index) {
  assert(index >= 0 && index < 2);
  if (index == 0) {
    return I18n::Message::DiscreteLegend;
  }
  return I18n::Message::LeftIntegralSecondLegend;
}

void DiscreteCalculation::setParameterAtIndex(float f, int index) {
  assert(index == 0);
  float rf = roundf(f);
  m_abscissa = rf;
  compute(index);
}


float DiscreteCalculation::parameterAtIndex(int index) {
  assert(index >= 0 && index < 2);
  if (index == 0) {
    return m_abscissa;
  }
  return m_result;
}

float DiscreteCalculation::lowerBound() {
  return m_abscissa;
}

float DiscreteCalculation::upperBound() {
  return m_abscissa;
}

void DiscreteCalculation::compute(int indexKnownElement) {
  if (m_law == nullptr) {
    return;
  }
  m_result = m_law->evaluateAtAbscissa(m_abscissa);
  /* Results in probability application are rounder to 3 decimals */
  m_result = roundf(m_result/k_precision)*k_precision;
}

}