[apps/statistics] Allow non integer value sizes

apps/statistics/store.cpp

@@ -192,7 +192,7 @@ double Store::defaultValue(int i, int j) {
 }
 
 double Store::sumOfValuesBetween(double x1, double x2) {
-  int result = 0;
+  double result = 0;
   for (int k = 0; k < m_numberOfPairs; k++) {
     if (m_data[0][k] < x2 && x1 <= m_data[0][k]) {
       result += m_data[1][k];

apps/statistics/store_controller.cpp

@@ -42,8 +42,6 @@ bool StoreController::setDataAtLocation(double floatBody, int columnIndex, int r
     if (floatBody < 0) {
       return false;
     }
-    m_store->set(std::round(floatBody), columnIndex, rowIndex-1);
-    return true;
   }
   return Shared::StoreController::setDataAtLocation(floatBody, columnIndex, rowIndex);
 }