forked from mnbvc188199/Warrior_EA
210 lines
15 KiB
MQL5
210 lines
15 KiB
MQL5
//+------------------------------------------------------------------+
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//| Study.mq5 |
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//| Copyright DNG® |
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//| https://www.mql5.com/en/users/dng |
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//+------------------------------------------------------------------+
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#property copyright "Copyright DNG®"
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#property link "https://www.mql5.com/en/users/dng"
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#property version "1.00"
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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#define Study
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#include "Trajectory.mqh"
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//+------------------------------------------------------------------+
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//| Input parameters |
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//+------------------------------------------------------------------+
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input int Iterations = 1e7;
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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STrajectory Buffer[];
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CNet Value;
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//---
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float dError;
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datetime dtStudied;
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//---
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CBufferFloat State;
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CBufferFloat *Result;
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//+------------------------------------------------------------------+
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//| Expert initialization function |
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//+------------------------------------------------------------------+
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int OnInit()
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{
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//---
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ResetLastError();
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if(!LoadTotalBase())
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{
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PrintFormat("Error of load study data: %d", GetLastError());
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return INIT_FAILED;
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}
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//--- load models
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float temp;
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if(!Value.Load(FileName + "Val.nnw", temp, temp, temp, dtStudied, true))
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{
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CArrayObj *value = new CArrayObj();
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if(!CreateValueDescriptions(value))
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{
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delete value;
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return INIT_FAILED;
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}
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if(!Value.Create(value))
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{
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delete value;
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return INIT_FAILED;
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}
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delete value;
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//---
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}
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//---
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Value.getResults(Result);
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if(Result.Total() != NRewards)
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{
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PrintFormat("The scope of the Value does not match the rewards count (%d <> %d)", NRewards, Result.Total());
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return INIT_FAILED;
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}
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//---
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if(!EventChartCustom(ChartID(), 1, 0, 0, "Init"))
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{
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PrintFormat("Error of create study event: %d", GetLastError());
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return INIT_FAILED;
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}
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//---
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return(INIT_SUCCEEDED);
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}
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//+------------------------------------------------------------------+
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//| Expert deinitialization function |
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//+------------------------------------------------------------------+
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void OnDeinit(const int reason)
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{
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//---
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Value.Save(FileName + "Val.nnw", 0, 0, 0, TimeCurrent(), true);
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delete Result;
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}
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//+------------------------------------------------------------------+
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//| ChartEvent function |
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//+------------------------------------------------------------------+
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void OnChartEvent(const int id,
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const long &lparam,
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const double &dparam,
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const string &sparam)
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{
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//---
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if(id == 1001)
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Train();
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}
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//+------------------------------------------------------------------+
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//| Train function |
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//+------------------------------------------------------------------+
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void Train(void)
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{
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int total_tr = ArraySize(Buffer);
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uint ticks = GetTickCount();
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int check = 0;
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//---
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bool StopFlag = false;
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for(int iter = 0; (iter < Iterations && !IsStopped() && !StopFlag); iter ++)
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{
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int tr = (int)((MathRand() / 32767.0) * (total_tr - 1));
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int i = (int)((MathRand() * MathRand() / MathPow(32767, 2)) * (Buffer[tr].Total - 2 * ValueBars));
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if(i < 0)
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{
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iter--;
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continue;
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check++;
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if(check >= total_tr)
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break;
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}
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check = 0;
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//--- History data
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State.AssignArray(Buffer[tr].States[i].state);
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for(int state = 1; state < ValueBars; state++)
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State.AddArray(Buffer[tr].States[i + state].state);
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//--- Study
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if(!Value.feedForward(GetPointer(State)))
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{
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PrintFormat("%s -> %d", __FUNCTION__, __LINE__);
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StopFlag = true;
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break;
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}
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vector<float> target, result;
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target.Assign(Buffer[tr].States[i + ValueBars - 1].rewards);
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result.Assign(Buffer[tr].States[i + 2 * ValueBars - 1].rewards);
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target = target - result*MathPow(DiscFactor,ValueBars);
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Value.getResults(result);
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Result.AssignArray(CAGrad(target - result) + result);
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if(!Value.backProp(Result, (CBufferFloat *)NULL, (CBufferFloat *)NULL))
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{
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PrintFormat("%s -> %d", __FUNCTION__, __LINE__);
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StopFlag = true;
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break;
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}
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//---
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if(GetTickCount() - ticks > 500)
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{
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string str = StringFormat("%-15s %5.2f%% -> Error %15.8f\n", "Value", iter * 100.0 / (double)(Iterations), Value.getRecentAverageError());
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Comment(str);
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ticks = GetTickCount();
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}
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}
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Comment("");
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//---
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PrintFormat("%s -> %d -> %-15s %10.7f", __FUNCTION__, __LINE__, "Value", Value.getRecentAverageError());
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ExpertRemove();
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//---
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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vector<float> CAGrad(vector<float> &grad)
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{
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matrix<float> GG = grad.Outer(grad);
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GG.ReplaceNan(0);
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if(MathAbs(GG).Sum() == 0)
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return grad;
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float scale = MathSqrt(GG.Diag() + 1.0e-4f).Mean();
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GG = GG / MathPow(scale, 2);
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vector<float> Gg = GG.Mean(1);
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float gg = Gg.Mean();
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vector<float> w = vector<float>::Zeros(grad.Size());
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float c = MathSqrt(gg + 1.0e-4f) * fCAGrad_C;
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vector<float> w_best = w;
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float obj_best = FLT_MAX;
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vector<float> moment = vector<float>::Zeros(w.Size());
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for(int i = 0; i < iCAGrad_Iters; i++)
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{
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vector<float> ww;
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w.Activation(ww, AF_SOFTMAX);
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float obj = ww.Dot(Gg) + c * MathSqrt(ww.MatMul(GG).Dot(ww) + 1.0e-4f);
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if(MathAbs(obj) < obj_best)
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{
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obj_best = MathAbs(obj);
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w_best = w;
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}
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if(i < (iCAGrad_Iters - 1))
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{
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float loss = -obj;
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vector<float> derev = Gg + GG.MatMul(ww) * c / (MathSqrt(ww.MatMul(GG).Dot(ww) + 1.0e-4f) * 2) + ww.MatMul(GG) * c / (MathSqrt(ww.MatMul(GG).Dot(ww) + 1.0e-4f) * 2);
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vector<float> delta = derev * loss;
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ulong size = delta.Size();
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matrix<float> ident = matrix<float>::Identity(size, size);
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vector<float> ones = vector<float>::Ones(size);
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matrix<float> sm_der = ones.Outer(ww);
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sm_der = sm_der.Transpose() * (ident - sm_der);
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delta = sm_der.MatMul(delta);
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if(delta.Ptp() != 0)
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delta = delta / delta.Ptp();
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moment = delta * 0.8f + moment * 0.5f;
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w += moment;
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if(w.Ptp() != 0)
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w = w / w.Ptp();
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}
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}
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w_best.Activation(w, AF_SOFTMAX);
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float gw_norm = MathSqrt(w.MatMul(GG).Dot(w) + 1.0e-4f);
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float lmbda = c / (gw_norm + 1.0e-4f);
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vector<float> result = ((w * lmbda + 1.0f / (float)grad.Size()) * grad) / (1 + MathPow(fCAGrad_C, 2));
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//---
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return result;
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}
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//+------------------------------------------------------------------+
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