[statistics] Added 3 new measurements

apps/statistics/base.de.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Standardabweichung s"
 SumValues = "Summe"
 SumSquareValues = "Quadratsumme"
 InterquartileRange = "Interquartilsabstand"
+GeometricMean = "Geometrisches Mittel"
+HarmonicMean = "Harmonische Mittel"
+StatisticsMode = "Modus "

apps/statistics/base.en.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Sample std deviation s"
 SumValues = "Sum of values"
 SumSquareValues = "Sum of squared values"
 InterquartileRange = "Interquartile range"
+GeometricMean = "Geometric mean"
+HarmonicMean = "Harmonic Mean"
+StatisticsMode = "Mode"

apps/statistics/base.es.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Desviación típica s"
 SumValues = "Suma"
 SumSquareValues = "Suma cuadrados"
 InterquartileRange = "Rango intercuartilo"
+GeometricMean = "Significado geometrico"
+HarmonicMean = "Significado armonico"
+StatisticsMode = "Modo"

apps/statistics/base.fr.i18n

@@ -16,6 +16,9 @@ RectangleWidth = "Largeur des rectangles"
 BarStart = "Début de la série"
 FirstQuartile = "Premier quartile"
 Median = "Médiane"
+GeometricMean = "Moyenne géométrique"
+HarmonicMean = "Moyenne harmonique"
+StatisticsMode = "Mode"
 ThirdQuartile = "Troisième quartile"
 TotalFrequency = "Effectif total"
 Range = "Étendue"

apps/statistics/base.hu.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Minta std eltérés σ"
 SumValues = "Értékek összege"
 SumSquareValues = "Négyzetértékek összege"
 InterquartileRange = "Interkvartilis tartomány"
+GeometricMean = "Geometriai átlag"
+HarmonicMean = "Harmonikus átlag"
+StatisticsMode = "Mód"

apps/statistics/base.it.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Dev. std campionaria s"
 SumValues = "Somma"
 SumSquareValues = "Somma dei quadrati"
 InterquartileRange = "Scarto interquartile"
+GeometricMean = "Media geometrica"
+HarmonicMean = "Media armonica"
+StatisticsMode = "Modalità"

apps/statistics/base.nl.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Standaardafwijking s"
 SumValues = "Som"
 SumSquareValues = "Som van kwadraten"
 InterquartileRange = "Interkwartielafstand"
+GeometricMean = "Geometrisch gemiddelde"
+HarmonicMean = "Harmonisch gemiddelde"
+StatisticsMode = "Modus"

apps/statistics/base.pt.i18n

@@ -24,3 +24,6 @@ SampleStandardDeviationS = "Desvio padrão amostral s"
 SumValues = "Somatório"
 SumSquareValues = "Soma dos quadrados"
 InterquartileRange = "Amplitude interquartil"
+GeometricMean = "Média geométrica"
+HarmonicMean = "Média Harmônica"
+StatisticsMode = "Modo"

apps/statistics/calculation_controller.cpp

@@ -79,12 +79,15 @@ void CalculationController::willDisplayCellAtLocation(HighlightCell * cell, int
       I18n::Message::Maximum,
       I18n::Message::Range,
       I18n::Message::Mean,
+      I18n::Message::GeometricMean,
+      I18n::Message::HarmonicMean,
       I18n::Message::StandardDeviationSigma,
       I18n::Message::Deviation,
       I18n::Message::FirstQuartile,
       I18n::Message::ThirdQuartile,
       I18n::Message::Median,
       I18n::Message::InterquartileRange,
+      I18n::Message::StatisticsMode,
       I18n::Message::SumValues,
       I18n::Message::SumSquareValues,
       I18n::Message::SampleStandardDeviationS};
@@ -94,8 +97,8 @@ void CalculationController::willDisplayCellAtLocation(HighlightCell * cell, int
   }
   // Display a calculation cell
   CalculPointer calculationMethods[k_totalNumberOfRows] = {&Store::sumOfOccurrences, &Store::minValue,
-    &Store::maxValue, &Store::range, &Store::mean, &Store::standardDeviation, &Store::variance, &Store::firstQuartile,
+    &Store::maxValue, &Store::range, &Store::mean, &Store::geometricMean, &Store::harmonicMean, &Store::standardDeviation, &Store::variance, &Store::firstQuartile,
-    &Store::thirdQuartile, &Store::median, &Store::quartileRange, &Store::sum, &Store::squaredValueSum, &Store::sampleStandardDeviation};
+    &Store::thirdQuartile, &Store::median, &Store::quartileRange, &Store::mode, &Store::sum, &Store::squaredValueSum, &Store::sampleStandardDeviation};
   int seriesIndex = m_store->indexOfKthNonEmptySeries(i-1);
   double calculation = (m_store->*calculationMethods[j-1])(seriesIndex);
   EvenOddBufferTextCell * calculationCell = static_cast<EvenOddBufferTextCell *>(cell);

apps/statistics/calculation_controller.h

@@ -43,7 +43,7 @@ public:
   bool handleEvent(Ion::Events::Event event) override;
   void didBecomeFirstResponder() override;
 private:
-  static constexpr int k_totalNumberOfRows = 15;
+  static constexpr int k_totalNumberOfRows = 18;
   static constexpr int k_maxNumberOfDisplayableRows = 11;
   static constexpr int k_numberOfCalculationCells = 3 * k_maxNumberOfDisplayableRows;
   static constexpr int k_numberOfSeriesTitleCells = 3;

apps/statistics/store.cpp

@@ -162,6 +162,34 @@ double Store::mean(int series) const {
   return sum(series)/sumOfOccurrences(series);
 }
 
+double Store::geometricMean(int series) const {
+  double geometricMean = 1;
+  int numberOfCoefficients = 0;
+  int numberOfPairs = numberOfPairsOfSeries(series);
+  for (int k = 0; k < numberOfPairs; k++) {
+    if (m_data[series][0][k] <= 0) {
+      return NAN;
+    }
+    geometricMean *= std::pow(m_data[series][0][k], m_data[series][1][k]);
+    numberOfCoefficients += m_data[series][1][k];
+  }
+  return std::pow(geometricMean, 1.0/numberOfCoefficients);
+}
+
+double Store::harmonicMean(int series) const {
+  double harmonicMean = 0;
+  int numberOfCoefficients = 0;
+  int numberOfPairs = numberOfPairsOfSeries(series);
+  for (int k = 0; k < numberOfPairs; k++) {
+    if (m_data[series][0][k] <= 0) {
+      return NAN;
+    }
+    harmonicMean += m_data[series][1][k]/m_data[series][0][k];
+    numberOfCoefficients += m_data[series][1][k];
+  }
+  return numberOfCoefficients/harmonicMean;
+}
+
 double Store::variance(int series) const {
   /* We use the Var(X) = E[(X-E[X])^2] definition instead of Var(X) = E[X^2] - E[X]^2
    * to ensure a positive result and to minimize rounding errors */
@@ -217,6 +245,22 @@ double Store::quartileRange(int series) const {
   return thirdQuartile(series)-firstQuartile(series);
 }
 
+double Store::mode(int series) const {
+  double modeValue = NAN;
+  double numberOfRepeats = 0;
+  int numberOfPairs = numberOfPairsOfSeries(series);
+  for (int k = 0; k < numberOfPairs; k++) {
+    if (m_data[series][1][k] > numberOfRepeats) {
+        modeValue = m_data[series][0][k];
+        numberOfRepeats = m_data[series][1][k];
+    }
+    else if (m_data[series][1][k] == numberOfRepeats) {
+      modeValue = NAN;
+    }
+  }
+  return modeValue;
+}
+
 double Store::median(int series) const {
   return sortedElementAtCumulatedFrequency(series, 1.0/2.0, true);
 }

apps/statistics/store.h

@@ -35,12 +35,15 @@ public:
   double minValue(int series) const;
   double range(int series) const;
   double mean(int series) const;
+  double geometricMean(int series) const;
+  double harmonicMean(int series) const;
   double variance(int series) const;
   double standardDeviation(int series) const;
   double sampleStandardDeviation(int series) const;
   double firstQuartile(int series) const;
   double thirdQuartile(int series) const;
   double quartileRange(int series) const;
+  double mode(int series) const;
   double median(int series) const;
   double sum(int series) const;
   double squaredValueSum(int series) const;