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Buffer.mqh
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Buffer.mqh
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//+------------------------------------------------------------------+
//| EA31337 framework |
//| Copyright 2016-2023, EA31337 Ltd |
//| https://github.com/EA31337 |
//+------------------------------------------------------------------+
/*
* This file is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
// Prevents processing this includes file for the second time.
#ifndef BUFFER_MQH
#define BUFFER_MQH
// Includes.
#include "Dict.mqh"
/**
* Class to store data values.
*/
template <typename T>
class Buffer : public Dict<long, T> {
public:
void Buffer() {}
/**
* Adds new value.
*/
void Add(T _value, long _dt = 0) {
_dt = _dt > 0 ? _dt : TimeCurrent();
Set(_dt, _value);
}
/**
* Returns the lowest value.
*/
T GetMin() {
T min = NULL;
for (DictIterator<long, T> iter = Begin(); iter.IsValid(); ++iter)
if (min == NULL || min > iter.Value()) min = iter.Value();
return min;
}
/**
* Returns the highest value.
*/
T GetMax() {
T max = NULL;
for (DictIterator<long, T> iter = Begin(); iter.IsValid(); ++iter)
if (max == NULL || max < iter.Value()) max = iter.Value();
return max;
}
/**
* Returns average value.
*/
T GetAvg() {
T sum = 0;
unsigned int numValues = 0;
for (DictIterator<long, T> iter = Begin(); iter.IsValid(); ++iter) {
sum += iter.Value();
++numValues;
}
return T(sum / numValues);
}
/**
* Returns median of values.
*/
T GetMed() {
T array[];
ArrayResize(array, Size());
for (DictIterator<long, T> iter = Begin(); iter.IsValid(); ++iter) {
array[iter.Index()] = iter.Value();
}
ArraySort(array);
double median;
int len = ArraySize(array);
if (len % 2 == 0)
median = (array[len / 2] + array[(len / 2) - 1]) / 2;
else
median = array[len / 2];
return (T)median;
}
};
#endif // BUFFER_MQH