﻿ Thiago's website

## Statistics

Some statistics algorithm

```struct Min
{
double m_v;
public:
Min()
{
m_v = (std::numeric_limits<double>::max)();
}
void operator() (double v)
{
if (v < m_v)
m_v = v;
}
double Minimun() const { return m_v; }
};

struct Max
{
double m_v;
public:
Max()
{
m_v = -(std::numeric_limits<double>::max)();
}
void operator() (double v)
{
if (v > m_v)
m_v = v;
}
double Maximun() const { return m_v; }
};

struct Avg
{
double m_v;
int   m_count;
public:
Avg()
{
m_count = 0;
m_v = 0;
}
void operator() (double v)
{
m_v += v;
++m_count;
}
double Average() const { return m_v / double(m_count); }
};

template<class T1, class T2>
struct TBind : public T1, public T2 {
void operator() (double v)
{
T1::operator()(v);
T2::operator()(v);
}
};

template<class T1, class T2>
TBind<T1, T2> operator && (const T1&, const T2&)
{
return TBind<T1, T2>();
}

int main()
{
using namespace std;
vector<int> v;
v.push_back(2);
v.push_back(1);
v.push_back(3);

//auto r =
cout << for_each(v.begin(),
v.end(),
Min() && Max() && Avg()).Minimun();

//cout << r.Maximum();

}

//*c++0x*/

int main()
{
using namespace std;
vector<int> v;
v.push_back(2);
v.push_back(1);
v.push_back(3);

auto r = for_each(v.begin(),
v.end(),
Min() && Max() && Avg());
cout <<  r.Minimun() << endl;
cout << r.Maximun() << endl;
cout << r.Average() << endl;

}
```