public static void Prepare(
List <int> equityChanges, List <int> bondChanges, List <int> billChanges,
Distro distroEquities, Distro distroBonds, Distro distroBills,
Object printlock)
{
int[] cases = { 1, 2, 3 };
var res1 = Parallel.ForEach(
cases,
(t) =>
{
List <int> testValues = new List <int>();
Distro distroTest = new Distro(Globals.Singleton().Bins);
switch (t)
{
case 1:
Distro.PrepareDistribution(
equityChanges, distroEquities,
Globals.Singleton().Bins, "DistroEquities.csv", printlock);
break;
case 2:
Distro.PrepareDistribution(
bondChanges, distroBonds,
Globals.Singleton().Bins, "DistroBonds.csv", printlock);
break;
case 3:
Distro.PrepareDistribution(
billChanges, distroBills,
Globals.Singleton().Bins, "DistroBills.csv", printlock);
break;
}
});
}
// Sweep run for a single portfolio
public static void ExecuteSweepSingle(
List <Country> countries,
List <Model> models,
SweepParameters[] sweeps,
ConcurrentBag <ModelResult> modelResults,
StreamWriter swr,
Object printlock)
{
Country c = new Country("", 0, 0, 0.0, 0.0, 0.0, 0.0, 0);
List <int> equityChanges = new List <int>();
List <int> bondChanges = new List <int>();
List <int> billChanges = new List <int>();
GraphAcquierer.Acquire(countries, equityChanges, bondChanges, billChanges, printlock);
Distro distroEquities = new Distro(Globals.Singleton().Bins);
Distro distroBonds = new Distro(Globals.Singleton().Bins);
Distro distroBills = new Distro(Globals.Singleton().Bins);
Distro.Prepare(
equityChanges, bondChanges, billChanges,
distroEquities, distroBonds, distroBills,
printlock);
Distro.Test(
distroEquities, distroBonds, distroBills,
printlock);
lock (printlock)
{
Console.WriteLine(Utils.ResultHeader);
}
var res2 = Parallel.ForEach(
models,
(m) =>
{
var res1 = Parallel.ForEach(
sweeps,
(sw) =>
{
Model mm = Model.SweepModel(m, sw, c);
if (mm.Validate())
{
List <SingleRunResult> result = Market.RunSinglePortfolioExperiment(
mm,
distroEquities, distroBonds, distroBills);
ModelResult mr = new ModelResult(mm, result);
modelResults.Add(mr);
Utils.WriteResult(null, mm, mr, printlock);
Utils.WriteResult(swr, mm, mr, printlock);
}
});
});
}
public static void PrepareDistribution(
List <int> changes, Distro distro, int bins, string resultPath, Object printLock)
{
int minChange = changes.Min();
int maxChange = changes.Max();
int span = maxChange - minChange;
if (span == 0)
{
lock (printLock)
{
Console.WriteLine("CANNOT CREATE {0} - no changes: {1} , { 2}", resultPath, minChange, maxChange);
}
return;
}
int[] counts = new int[bins];
for (int i = 0; i < bins; i++)
{
counts[i] = 0;
}
int binSize = span / bins + 1;
foreach (int c in changes)
{
int binNo = (c - minChange) / binSize;
counts[binNo]++;
}
using (StreamWriter sw = new StreamWriter(resultPath))
{
for (int j = 0; j < bins; j++)
{
double mid = minChange + binSize / 2 + binSize * j;
double binProb = (double)counts[j] / (double)changes.Count;
sw.WriteLine("{0:F2},{1:F2},", mid, binProb * 100.0);
distro.AddBin(mid, binProb);
}
}
lock (printLock)
{
Console.WriteLine("Accumulated: {0}", distro.GetAccumulation());
}
}
public static void Test(
Distro distroEquities, Distro distroBonds, Distro distroBills,
Object printlock)
{
int[] tests = { 1, 2, 3 };
var res1 = Parallel.ForEach(
tests,
(t) =>
{
List <int> testValues = new List <int>();
Distro distroTest = new Distro(Globals.Singleton().Bins);
switch (t)
{
case 1:
for (int i = 0; i < 10000000; i++)
{
testValues.Add((int)(distroEquities.Play() * Utils.PercentageScale));
}
Distro.PrepareDistribution(
testValues, distroTest,
Globals.Singleton().Bins, "testEq.csv", printlock);
break;
case 2:
for (int i = 0; i < 10000000; i++)
{
testValues.Add((int)(distroBonds.Play() * Utils.PercentageScale));
}
Distro.PrepareDistribution(
testValues, distroTest,
Globals.Singleton().Bins, "testBo.csv", printlock);
break;
case 3:
for (int i = 0; i < 10000000; i++)
{
testValues.Add((int)(distroBills.Play() * Utils.PercentageScale));
}
Distro.PrepareDistribution(
testValues, distroTest,
Globals.Singleton().Bins, "testBi.csv", printlock);
break;
}
});
}
public static List <SingleRunResult> RunSinglePortfolioExperiment(
Model m,
Distro distroEq, Distro distroBo, Distro distroBi)
{
int rebalanceEvery = m.RebalanceEvery;
double initWD = Globals.Singleton().StartSum *NormativeStepWD(m);
double[] prior = new double[3 * (int)Utils.StepsInYear];
List <SingleRunResult> singleRunResults = new List <SingleRunResult>();
for (int r = 0; r < Globals.Singleton().Repeats; r++)
{
double eq = Globals.Singleton().StartSum *m.StartEq / 100;
double bo = Globals.Singleton().StartSum *m.StartBo / 100;
double bi = Globals.Singleton().StartSum *(100 - m.StartEq - m.StartBo) / 100;
if (eq < 0 || bo < 0 || bi < 0)
{
throw new Exception("Bad parameters");
}
List <double> withdrawals = new List <double>();
double curWd = initWD;
for (int c = 0; c < Globals.Singleton().Cycles; c++)
{
// Market play
RunSingleStep(c, r, m, initWD,
ref eq, ref bo, ref bi,
distroEq, distroBo, distroBi,
ref prior, ref curWd, ref withdrawals);
}
singleRunResults.Add(new SingleRunResult("", m, eq + bo + bi, withdrawals.ToArray()));
}
return(singleRunResults);
}
// One run for a 2-part portfolio
public static void ExecuteDouble(
List <Country> countries,
List <Model> models,
ConcurrentBag <ModelResult> modelResults,
StreamWriter swr,
Object printlock)
{
// Separate countries into 2 groups: 2=WORLD, 1=all others
double weight1 = 0.0, weight2 = 0.0;
List <Country> countries1 = new List <Country>();
List <Country> countries2 = new List <Country>();
foreach (Country c in countries)
{
if (Globals.IsWorld(c.Filename))
{
countries2.Add(c);
weight2 += c.Weight;
}
else
{
countries1.Add(c);
weight1 += c.Weight;
}
}
if (weight1 <= 0 || weight2 <= 0)
{
throw new Exception("Cannot find the world or others");
}
// Group2 is just the World
List <int> equityChanges2 = new List <int>();
List <int> bondChanges2 = new List <int>();
List <int> billChanges2 = new List <int>();
GraphAcquierer.Acquire(countries2, equityChanges2, bondChanges2, billChanges2, printlock);
Distro distroEquities2 = new Distro(Globals.Singleton().Bins);
Distro distroBonds2 = new Distro(Globals.Singleton().Bins);
Distro distroBills2 = new Distro(Globals.Singleton().Bins);
Distro.Prepare(
equityChanges2, bondChanges2, billChanges2,
distroEquities2, distroBonds2, distroBills2,
printlock);
// Group1 is all except World
List <int> equityChanges1 = new List <int>();
List <int> bondChanges1 = new List <int>();
List <int> billChanges1 = new List <int>();
GraphAcquierer.Acquire(countries1, equityChanges1, bondChanges1, billChanges1, printlock);
Distro distroEquities1 = new Distro(Globals.Singleton().Bins);
Distro distroBonds1 = new Distro(Globals.Singleton().Bins);
Distro distroBills1 = new Distro(Globals.Singleton().Bins);
Distro.Prepare(
equityChanges1, bondChanges1, billChanges1,
distroEquities1, distroBonds1, distroBills1,
printlock);
lock (printlock)
{
Console.WriteLine(Utils.ResultHeader);
}
var res = Parallel.ForEach(
models,
(m) =>
{
if (m.Validate())
{
List <SingleRunResult> result = Market.RunDoublePortfolioExperiment(
m,
weight2 / (weight1 + weight2),
distroEquities1, distroBonds1, distroBills1,
distroEquities2, distroBonds2, distroBills2);
ModelResult mr = new ModelResult(m, result);
modelResults.Add(mr);
Utils.WriteResult(null, m, mr, printlock);
Utils.WriteResult(swr, m, mr, printlock);
}
});
}
// Sweep run for a double-part portfolio by country
public static void ExecuteSweepDoubleByCountry(
List <Country> countries,
List <Model> models,
SweepParameters[] sweeps,
ConcurrentBag <ModelResult> modelResults,
StreamWriter swr,
Object printlock)
{
// Group2 is just the World
List <Country> countries2 = new List <Country>();
foreach (Country c in countries)
{
if (Globals.IsWorld(c.Filename))
{
countries2.Add(c);
countries2.Last().Weight = 1;
}
}
List <int> equityChanges2 = new List <int>();
List <int> bondChanges2 = new List <int>();
List <int> billChanges2 = new List <int>();
GraphAcquierer.Acquire(countries2, equityChanges2, bondChanges2, billChanges2, printlock);
Distro distroEquities2 = new Distro(Globals.Singleton().Bins);
Distro distroBonds2 = new Distro(Globals.Singleton().Bins);
Distro distroBills2 = new Distro(Globals.Singleton().Bins);
Distro.Prepare(
equityChanges2, bondChanges2, billChanges2,
distroEquities2, distroBonds2, distroBills2,
printlock);
// Now enumerate countries; Group1 each time will carry just one
foreach (var c in countries)
{
if (Globals.IsWorld(c.Filename))
{
continue;
}
List <Country> countries1 = new List <Country>();
countries1.Add(c);
countries1.Last().Weight = 1;
// Group1 is just one country
List <int> equityChanges1 = new List <int>();
List <int> bondChanges1 = new List <int>();
List <int> billChanges1 = new List <int>();
GraphAcquierer.Acquire(countries1, equityChanges1, bondChanges1, billChanges1, printlock);
Distro distroEquities1 = new Distro(Globals.Singleton().Bins);
Distro distroBonds1 = new Distro(Globals.Singleton().Bins);
Distro distroBills1 = new Distro(Globals.Singleton().Bins);
Distro.Prepare(
equityChanges1, bondChanges1, billChanges1,
distroEquities1, distroBonds1, distroBills1,
printlock);
lock (printlock)
{
Console.WriteLine(Utils.ResultHeader);
}
var res2 = Parallel.ForEach(
models,
(m) =>
{
var res1 = Parallel.ForEach(
sweeps,
(sw) =>
{
Model mm = Model.SweepModel(m, sw, c);
if (mm.Validate())
{
if (mm.StartEq + mm.StartBo <= 100)
{
List <SingleRunResult> result = Market.RunDoublePortfolioExperiment(
mm,
sw.WorldShare,
distroEquities1, distroBonds1, distroBills1,
distroEquities2, distroBonds2, distroBills2);
ModelResult mr = new ModelResult(mm, result);
modelResults.Add(mr);
Utils.WriteResult(null, mm, mr, printlock);
Utils.WriteResult(swr, mm, mr, printlock);
}
}
});
});
c.Weight = 0;
}
}
public static void RunSingleStep(
int c, int r, Model m, double initialWithdrawal,
ref double eq, ref double bo, ref double bi,
Distro distroEq, Distro distroBo, Distro distroBi,
ref double[] prior, ref double curWithdrawal,
ref List <double> withdrawals)
{
// Market play
eq *= (1.0 + distroEq.Play());
bo *= (1.0 + distroBo.Play());
bi *= (1.0 + distroBi.Play());
// Calculate desired withdrawal on this step
switch (m.Strategy)
{
case 1:
curWithdrawal = initialWithdrawal;
break;
case 2:
curWithdrawal = (eq + bo + bi) * NormativeStepWD(m);
break;
case 3:
if (c >= (int)(3 * Utils.StepsInYear) &&
c % ((int)Utils.StepsInYear) == 0)
{
curWithdrawal = prior.Average() * NormativeStepWD(m);
}
break;
default:
throw new Exception("Unknown strategy");
}
// Calculate actual total step withdrawal
double actualWithdrawal = Math.Min(eq + bo + bi, curWithdrawal);
double allocated = 0;
if (bi > 0)
{
double d = Math.Min(bi, actualWithdrawal * (bi / (eq + bo + bi)));
allocated += d;
bi -= d;
}
if (bo > 0)
{
double d = Math.Min(bo, actualWithdrawal * (bo / (eq + bo + bi)));
allocated += d;
bo -= d;
}
if (eq > 0)
{
double d = Math.Min(eq, actualWithdrawal * (eq / (eq + bo + bi)));
allocated += d;
eq -= d;
}
if (allocated < actualWithdrawal)
{
double d = Math.Min(bi, actualWithdrawal - allocated);
bi -= d;
allocated += d;
d = Math.Min(bo, actualWithdrawal - allocated);
bo -= d;
allocated += d;
d = Math.Min(eq, actualWithdrawal - allocated);
eq -= d;
allocated += d;
}
withdrawals.Add(actualWithdrawal);
double total = eq + bo + bi;
// Rebalance evert X steps, if requested
if (m.RebalanceEvery > 0 && r % m.RebalanceEvery == 0)
{
eq = total * m.StartEq / 100.0;
bo = total * m.StartBo / 100.0;
bi = total - eq - bo;
}
// Remember priors
for (int y = 1; y < prior.Length; y++)
{
prior[y - 1] = prior[y];
}
prior[prior.Length - 1] = total;
}
public static List <SingleRunResult> RunDoublePortfolioExperiment(
Model m,
double share2,
Distro distroEq1, Distro distroBo1, Distro distroBi1,
Distro distroEq2, Distro distroBo2, Distro distroBi2)
{
int rebalanceEvery = m.RebalanceEvery;
double initWD = Globals.Singleton().StartSum *NormativeStepWD(m);
double initWD1 = initWD * (1.0 - share2);
double initWD2 = initWD * (share2);
double curWD1 = initWD1;
double curWD2 = initWD2;
double[] prior1 = new double[3 * (int)Utils.StepsInYear];
double[] prior2 = new double[3 * (int)Utils.StepsInYear];
List <SingleRunResult> results = new List <SingleRunResult>();
for (int r = 0; r < Globals.Singleton().Repeats; r++)
{
double eq1 = (1.0 - share2) * Globals.Singleton().StartSum *m.StartEq / 100;
double bo1 = (1.0 - share2) * Globals.Singleton().StartSum *m.StartBo / 100;
double bi1 = (1.0 - share2) * Globals.Singleton().StartSum *(100 - m.StartEq - m.StartBo) / 100;
if (eq1 < 0 || bo1 < 0 || bi1 < 0)
{
throw new Exception("Bad parameters");
}
double eq2 = share2 * Globals.Singleton().StartSum *m.StartEq / 100;
double bo2 = share2 * Globals.Singleton().StartSum *m.StartBo / 100;
double bi2 = share2 * Globals.Singleton().StartSum *(100 - m.StartEq - m.StartBo) / 100;
if (eq2 < 0 || bo2 < 0 || bi2 < 0)
{
throw new Exception("Bad parameters");
}
//List<double> withdrawals = new List<double>();
List <double> withdrawals1 = new List <double>();
List <double> withdrawals2 = new List <double>();
double curWd1 = initWD1;
double curWd2 = initWD2;
for (int c = 0; c < Globals.Singleton().Cycles; c++)
{
RunSingleStep(c, r, m, initWD1,
ref eq1, ref bo1, ref bi1,
distroEq1, distroBo1, distroBi1,
ref prior1, ref curWD1, ref withdrawals1);
RunSingleStep(c, r, m, initWD2,
ref eq2, ref bo2, ref bi2,
distroEq2, distroBo2, distroBi2,
ref prior2, ref curWD2, ref withdrawals2);
//TODO: here comes portfolio parts re balancing
}
results.Add(
new SingleRunResult(
m.CountryName, m,
eq1 + bo1 + bi1 + eq2 + bo2 + bi2,
withdrawals1.ToArray(),
withdrawals2.ToArray()));
}
return(results);
}
