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Add new data structures and event handling classes for trading platform. Include base classes, value and bar structs, event arguments, emitters, listeners. Update ruleset for SonarLint.

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Miha Kralj
2024-07-25 17:42:09 -07:00
parent f7fd3fbf9f
commit 7dd938c368
86 changed files with 9367 additions and 9153 deletions
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Calculations/_Updated/ATR_Series.cs
+87 -87
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@@ -1,88 +1,88 @@
namespace QuanTAlib;
using System;
using System.Collections.Generic;
/* <summary>
ATR: wildeR Moving Average
The average true range (ATR) is a price volatility indicator
showing the average price variation of assets within a given time period.
Sources:
https://en.wikipedia.org/wiki/Average_true_range
https://www.tradingview.com/wiki/Average_True_Range_(ATR)
https://www.investopedia.com/terms/a/atr.asp
</summary> */
public class ATR_Series : TSeries {
protected readonly int _period;
protected readonly bool _NaN;
protected readonly TBars _data;
private double _k;
private int _len;
private double _lastatr, _lastlastatr, _cm1, _lastcm1, _sum, _oldsum;
//core constructors
public ATR_Series(int period, bool useNaN) {
_period = period;
_k = 1.0 / (double)(_period);
_NaN = useNaN;
_len = 0;
Name = $"ATR({period})";
}
public ATR_Series(TBars source, int period, bool useNaN) : this(period, useNaN) {
_data = source;
Name = Name.Substring(0, Name.IndexOf(")")) + $", {(string.IsNullOrEmpty(_data.Name) ? "data" : _data.Name)})";
_data.Pub += Sub;
Add(data: _data);
}
public ATR_Series() : this(period: 1, useNaN: false) { }
public ATR_Series(int period) : this(period: period, useNaN: false) { }
public ATR_Series(TBars source) : this(source, period: 1, useNaN: false) { }
public ATR_Series(TBars source, int period) : this(source: source, period: period, useNaN: false) { }
//////////////////
// core Add() algo
public override (DateTime t, double v) Add((DateTime t, double o, double h, double l, double c, double v) TBar, bool update = false) {
if (update) { _lastatr = _lastlastatr; _cm1 = _lastcm1; _sum = _oldsum; }
else {
_lastlastatr = _lastatr; _lastcm1 = _cm1; _oldsum = _sum;
_k = (_period == 0) ? 1 / (double)_len : _k;
_len++;
}
if (_len == 1) { _cm1 = TBar.c; }
double d1 = Math.Abs(TBar.h - TBar.l);
double d2 = Math.Abs(_cm1 - TBar.h);
double d3 = Math.Abs(_cm1 - TBar.l);
(DateTime t, double v) d = (TBar.t, Math.Max(d1, Math.Max(d2, d3)));
_cm1 = TBar.c;
double _atr = 0;
if (this.Count == 0) { _atr = d.v; }
else if (this.Count < _period + 1) { _sum += d.v; _atr = _sum / (this.Count); }
else { _atr = _k * (d.v - _lastatr) + _lastatr; }
_lastatr = _atr;
var res = (TBar.t, Count < _period - 1 && _NaN ? double.NaN : _atr);
return base.Add(res, update);
}
public new void Add(TBars data) {
foreach (var item in data) { Add(item, false); }
}
public (DateTime t, double v) Add(bool update) {
return this.Add(TBar: _data.Last, update: update);
}
public (DateTime t, double v) Add() {
return Add(TBar: _data.Last, update: false);
}
private new void Sub(object source, TSeriesEventArgs e) {
Add(TBar: _data.Last, update: e.update);
}
//reset calculation
public override void Reset() {
_len = 0;
}
namespace QuanTAlib;
using System;
using System.Collections.Generic;
/* <summary>
ATR: wildeR Moving Average
The average true range (ATR) is a price volatility indicator
showing the average price variation of assets within a given time period.
Sources:
https://en.wikipedia.org/wiki/Average_true_range
https://www.tradingview.com/wiki/Average_True_Range_(ATR)
https://www.investopedia.com/terms/a/atr.asp
</summary> */
public class ATR_Series : TSeries {
protected readonly int _period;
protected readonly bool _NaN;
protected readonly TBars _data;
private double _k;
private int _len;
private double _lastatr, _lastlastatr, _cm1, _lastcm1, _sum, _oldsum;
//core constructors
public ATR_Series(int period, bool useNaN) {
_period = period;
_k = 1.0 / (double)(_period);
_NaN = useNaN;
_len = 0;
Name = $"ATR({period})";
}
public ATR_Series(TBars source, int period, bool useNaN) : this(period, useNaN) {
_data = source;
Name = Name.Substring(0, Name.IndexOf(")")) + $", {(string.IsNullOrEmpty(_data.Name) ? "data" : _data.Name)})";
_data.Pub += Sub;
Add(data: _data);
}
public ATR_Series() : this(period: 1, useNaN: false) { }
public ATR_Series(int period) : this(period: period, useNaN: false) { }
public ATR_Series(TBars source) : this(source, period: 1, useNaN: false) { }
public ATR_Series(TBars source, int period) : this(source: source, period: period, useNaN: false) { }
//////////////////
// core Add() algo
public override (DateTime t, double v) Add((DateTime t, double o, double h, double l, double c, double v) TBar, bool update = false) {
if (update) { _lastatr = _lastlastatr; _cm1 = _lastcm1; _sum = _oldsum; }
else {
_lastlastatr = _lastatr; _lastcm1 = _cm1; _oldsum = _sum;
_k = (_period == 0) ? 1 / (double)_len : _k;
_len++;
}
if (_len == 1) { _cm1 = TBar.c; }
double d1 = Math.Abs(TBar.h - TBar.l);
double d2 = Math.Abs(_cm1 - TBar.h);
double d3 = Math.Abs(_cm1 - TBar.l);
(DateTime t, double v) d = (TBar.t, Math.Max(d1, Math.Max(d2, d3)));
_cm1 = TBar.c;
double _atr = 0;
if (this.Count == 0) { _atr = d.v; }
else if (this.Count < _period + 1) { _sum += d.v; _atr = _sum / (this.Count); }
else { _atr = _k * (d.v - _lastatr) + _lastatr; }
_lastatr = _atr;
var res = (TBar.t, Count < _period - 1 && _NaN ? double.NaN : _atr);
return base.Add(res, update);
}
public new void Add(TBars data) {
foreach (var item in data) { Add(item, false); }
}
public (DateTime t, double v) Add(bool update) {
return this.Add(TBar: _data.Last, update: update);
}
public (DateTime t, double v) Add() {
return Add(TBar: _data.Last, update: false);
}
private new void Sub(object source, TSeriesEventArgs e) {
Add(TBar: _data.Last, update: e.update);
}
//reset calculation
public override void Reset() {
_len = 0;
}
}