I would like some help condensing this code down to size. I am trying to utilize Qt's container classes as efficiently as possible. I do not believe this code reflects my objective.
#include <QCoreApplication>
#include <QDebug>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QVector<int> vect;
vect.append(0);
vect.append(0);
vect.append(0);
vect.append(0);
vect.append(1);
vect.append(1);
vect.append(2);
vect.append(1);
QVectorIterator<int> ivect(vect);
double median = 0;
if(vect.count() % 2 == 0){
median =
static_cast<double>((vect[vect.count() / 2 - 1] + vect[vect.count() / 2])) / 2;
}
else{
median = vect[vect.count() / 2];
}
int sum = 0;
while(ivect.hasNext()){
sum += ivect.next();
}
double mean = static_cast<double>(sum) / vect.count();
QSet<int> set;
ivect.toFront();
while(ivect.hasNext())
{
set << ivect.next();
}
QMap<int, int> map;
QSetIterator<int> iset(set);
ivect.toFront();
while(iset.hasNext())
{
int count = 0;
while(ivect.hasNext())
{
if(iset.peekNext() == ivect.next())
{
count++;
}
}
ivect.toFront();
map.insert(iset.next(), count);
}
QMapIterator<int, int> imap(map);
int maxValue = 0;
QString mode;
while(imap.hasNext())
{
imap.next();
if(imap.value() > maxValue)
{
maxValue = imap.value();
mode = QString::number(imap.key());
}
else if(imap.value() == maxValue)
{
mode = "NULL";
}
}
qDebug() << set;
qDebug() << map;
qDebug() << "Mean:" << mean;
qDebug() << "Median:" << median;
qDebug() << "Mode frequency:" << maxValue;
qDebug() << "Mode:" << mode;
return a.exec();
}
