@Override
public DoubleMatrix2D evaluate(final DoubleMatrix1D x) {
YieldCurveBundle curves = _curveBuilderFunction.evaluate(x);
final YieldCurveBundle knownCurves = _data.getKnownCurves();
// set any known (i.e. fixed) curves
if (knownCurves != null) {
curves.addAll(knownCurves);
}
final int totalNodes = _data.getTotalNodes();
final List<String> curveNames = _data.getCurveNames();
final double[][] res = new double[_data.getNumInstruments()][totalNodes];
for (int i = 0; i < _data.getNumInstruments(); i++) { // loop over all instruments
InstrumentDerivative deriv = _data.getDerivative(i);
final Map<String, List<DoublesPair>> senseMap =
_calculator.visit(deriv, curves).getSensitivities();
int offset = 0;
for (final String name : curveNames) { // loop over all curves (by name)
if (senseMap.containsKey(name)) {
final Curve<Double, Double> curve = curves.getCurve(name).getCurve();
if (!(curve instanceof InterpolatedDoublesCurve)) {
throw new IllegalArgumentException("Can only handle InterpolatedDoublesCurve");
}
final InterpolatedDoublesCurve interpolatedCurve = (InterpolatedDoublesCurve) curve;
final Interpolator1DDataBundle data = interpolatedCurve.getDataBundle();
final Interpolator1D sensitivityCalculator = _data.getInterpolatorForCurve(name);
final List<DoublesPair> senseList = senseMap.get(name);
if (senseList.size() != 0) {
final double[][] sensitivity = new double[senseList.size()][];
int k = 0;
for (final DoublesPair timeAndDF : senseList) {
sensitivity[k++] =
sensitivityCalculator.getNodeSensitivitiesForValue(
data, timeAndDF.getFirst(), _data.useFiniteDifferenceForNodeSensitivities());
}
for (int j = 0; j < sensitivity[0].length; j++) {
double temp = 0.0;
k = 0;
for (final DoublesPair timeAndDF : senseList) {
temp += timeAndDF.getSecond() * sensitivity[k++][j];
}
res[i][j + offset] = temp;
}
}
}
offset += _data.getCurveNodePointsForCurve(name).length;
}
}
return new DoubleMatrix2D(res);
}
@Override
public Set<ComputedValue> execute(
final FunctionExecutionContext executionContext,
final FunctionInputs inputs,
final ComputationTarget target,
final Set<ValueRequirement> desiredValues) {
final ValueRequirement desiredValue = desiredValues.iterator().next();
final String curveName = desiredValue.getConstraint(ValuePropertyNames.CURVE);
final String interpolatorName =
desiredValue.getConstraint(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_INTERPOLATOR);
final String leftExtrapolatorName =
desiredValue.getConstraint(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_LEFT_EXTRAPOLATOR);
final String rightExtrapolatorName =
desiredValue.getConstraint(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_RIGHT_EXTRAPOLATOR);
final Object objectFuturePriceData =
inputs.getValue(ValueRequirementNames.FUTURE_PRICE_CURVE_DATA);
if (objectFuturePriceData == null) {
throw new OpenGammaRuntimeException("Could not get futures curve " + curveName);
}
final NodalDoublesCurve futurePriceData = (NodalDoublesCurve) objectFuturePriceData;
final Interpolator1D interpolator =
CombinedInterpolatorExtrapolatorFactory.getInterpolator(
interpolatorName, leftExtrapolatorName, rightExtrapolatorName);
final ForwardCurve curve =
new ForwardCurve(
InterpolatedDoublesCurve.from(
futurePriceData.getXData(), futurePriceData.getYData(), interpolator));
final ValueProperties properties =
createValueProperties()
.with(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_CALCULATION_METHOD,
ForwardCurveValuePropertyNames.PROPERTY_FUTURE_PRICE_METHOD)
.with(ValuePropertyNames.CURVE, curveName)
.with(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_INTERPOLATOR,
interpolatorName)
.with(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_LEFT_EXTRAPOLATOR,
leftExtrapolatorName)
.with(
ForwardCurveValuePropertyNames.PROPERTY_FORWARD_CURVE_RIGHT_EXTRAPOLATOR,
rightExtrapolatorName)
.with(
InstrumentTypeProperties.PROPERTY_SURFACE_INSTRUMENT_TYPE,
InstrumentTypeProperties.EQUITY_FUTURE_PRICE)
.get();
final ValueSpecification resultSpec =
new ValueSpecification(
ValueRequirementNames.FORWARD_CURVE, target.toSpecification(), properties);
return Collections.singleton(new ComputedValue(resultSpec, curve));
}
// Test in so that it will break when the drift curve is serialized
@Test(expectedExceptions = OpenGammaRuntimeException.class)
public void testDriftCurveNotSerialized1() {
final double spot = 100;
final Curve<Double, Double> driftCurve =
InterpolatedDoublesCurve.from(EXPIRIES, FORWARD, INTERPOLATOR);
final ForwardCurve curve = new ForwardCurve(spot, driftCurve);
cycleObject(ForwardCurve.class, curve);
}
@Test
public void testCurve2() {
final ForwardCurve curve1 =
new ForwardCurve(InterpolatedDoublesCurve.from(EXPIRIES, FORWARD, INTERPOLATOR));
final ForwardCurve curve2 = cycleObject(ForwardCurve.class, curve1);
assertEquals(curve1.getSpot(), curve2.getSpot(), EPS);
assertTrue(curve2.getDriftCurve() instanceof FunctionalDoublesCurve);
assertCurveEquals(curve1.getForwardCurve(), curve2.getForwardCurve());
assertCurveEquals(curve1.getDriftCurve(), curve2.getDriftCurve());
}
public static YieldCurveBundle getBundle() {
YieldCurveBundle bundle = new YieldCurveBundle();
Interpolator1D extrapolator =
CombinedInterpolatorExtrapolatorFactory.getInterpolator(
Interpolator1DFactory.DOUBLE_QUADRATIC, LINEAR_EXTRAPOLATOR, FLAT_EXTRAPOLATOR);
InterpolatedDoublesCurve fCurve =
InterpolatedDoublesCurve.from(FUNDING_CURVE_TIMES, FUNDING_YIELDS, extrapolator);
YieldCurve fundingCurve = YieldCurve.from(fCurve);
bundle.setCurve(FUNDING_CURVE_NAME, fundingCurve);
InterpolatedDoublesCurve lcurve =
InterpolatedDoublesCurve.from(LIBOR_CURVE_TIMES, LIBOR_YIELDS, extrapolator);
YieldCurve liborCurve = YieldCurve.from(lcurve);
bundle.setCurve(LIBOR_CURVE_NAME, liborCurve);
return bundle;
}
@Override
protected Object getResult(
final PDELocalVolatilityCalculator<?> calculator,
final LocalVolatilitySurfaceMoneyness localVolatility,
final ForwardCurve forwardCurve,
final EuropeanVanillaOption option,
final YieldAndDiscountCurve discountingCurve) {
final Interpolator1DDataBundle data =
(Interpolator1DDataBundle)
calculator.getResult(localVolatility, forwardCurve, option, discountingCurve);
return InterpolatedDoublesCurve.from(
data.getKeys(),
data.getValues(),
((LocalVolatilityForwardPDEVolatilityGreeksGridCalculator) calculator).getInterpolator());
}
@Test
public void convertNonEmpty() {
final Map<Double, Double> map = new HashMap<Double, Double>();
map.put(1., 0.03);
map.put(2., 0.04);
map.put(3.5, 0.05);
Map<String, Double> expected = new HashMap<String, Double>();
expected.put("Foo[1.0]", 0.03);
expected.put("Foo[2.0]", 0.04);
expected.put("Foo[3.5]", 0.05);
Map<String, Double> actual =
_converter.convert(
"Foo",
YieldCurve.from(
InterpolatedDoublesCurve.from(
map, Interpolator1DFactory.getInterpolator("Linear"))));
assertEquals(expected, actual);
}
public void test() throws Exception {
IRSwapTradeParser tradeParser = new IRSwapTradeParser();
Resource resource =
ResourceUtils.createResource(
"classpath:com/opengamma/financial/analytics/test/Trades14Oct.csv");
List<IRSwapSecurity> trades = tradeParser.parseCSVFile(resource.getURL());
List<IRSwapSecurity> tradesClean = Lists.newArrayList();
for (IRSwapSecurity irSwapSecurity : trades) {
String currency = irSwapSecurity.getRawInput().getString(PAY_CURRENCY);
if (currency.equals(CURRENCY)) {
tradesClean.add(irSwapSecurity);
}
}
// Build the curve bundle
final HashMap<String, Currency> ccyMap = new HashMap<>();
ccyMap.put(discountingCurvename, ccy);
ccyMap.put(forward3MCurveName, ccy);
ccyMap.put(forward6MCurveName, ccy);
final FXMatrix fx = new FXMatrix(ccy);
final YieldCurveBundle curvesClean = new YieldCurveBundle(fx, ccyMap);
IRCurveParser curveParser = new IRCurveParser();
Resource resourceCurve =
ResourceUtils.createResource(
"classpath:com/opengamma/financial/analytics/test/Base_Curves_20131014_Clean.csv");
List<InterpolatedDoublesCurve> curves = curveParser.parseCSVFile(resourceCurve.getURL());
for (InterpolatedDoublesCurve interpolatedDoublesCurve : curves) {
String name = interpolatedDoublesCurve.getName();
if (name.equals(ON_NAME)) {
curvesClean.setCurve(discountingCurvename, DiscountCurve.from(interpolatedDoublesCurve));
}
if (name.equals(ONE_MONTH_NAME)) {
curvesClean.setCurve(forward1MCurveName, DiscountCurve.from(interpolatedDoublesCurve));
}
if (name.equals(THREE_MONTH_NAME)) {
curvesClean.setCurve(forward3MCurveName, DiscountCurve.from(interpolatedDoublesCurve));
}
if (name.equals(SIX_MONTH_NAME)) {
curvesClean.setCurve(forward6MCurveName, DiscountCurve.from(interpolatedDoublesCurve));
}
}
// Convert the swap security into a swap definition
final SwapSecurityConverterDeprecated swapConverter =
new SwapSecurityConverterDeprecated(
_holidaySource, _conventionBundleSource, _regionSource, false);
final FRASecurityConverterDeprecated fraConverter =
new FRASecurityConverterDeprecated(_holidaySource, _regionSource, _conventionBundleSource);
final ZeroDepositConverter ZeroCouponConverter =
new ZeroDepositConverter(_conventionBundleSource, _holidaySource);
List<SwapDefinition> swapsDefinition = Lists.newArrayList();
List<ForwardRateAgreementDefinition> frasDefinition = Lists.newArrayList();
List<DepositZeroDefinition> zcsDefinition = Lists.newArrayList();
/*for (IRSwapSecurity irSwapSecurity : tradesClean) {
switch (irSwapSecurity.getRawInput().getString("PRODUCT_TYPE")) {
case "SWAP":
swapsDefinition.add((SwapDefinition) swapConverter.visitSwapSecurity(irSwapSecurity.getSwapSecurity()));
// we don't treat the fra case at the moment
case "FRA":
frasDefinition.add((ForwardRateAgreementDefinition) fraConverter.visitSwapSecurity(irSwapSecurity.getSwapSecurity()));
case "OIS":
swapsDefinition.add((SwapDefinition) swapConverter.visitSwapSecurity(irSwapSecurity.getSwapSecurity()));
// we don't treat the fra case at the moment
case "ZCS":
zcsDefinition.add((DepositZeroDefinition) ZeroCouponConverter.visitSwapSecurity(irSwapSecurity.getSwapSecurity()));
}
}
*/
// Load the historical time series from a csv file
/* NonVersionedRedisHistoricalTimeSeriesSource source = new NonVersionedRedisHistoricalTimeSeriesSource(getJedisPool(), getRedisPrefix());
CMECurveFixingTSLoader loader = new CMECurveFixingTSLoader(source);*/
/* loader.loadCurveFixingCSVFile("/vols/ogdev/CME/curve-fixing/sample-cme-curve-fixing.csv");
HistoricalTimeSeries historicalTimeSeries = source.getHistoricalTimeSeries(UniqueId.of(ExternalSchemes.ISDA.getName(), "CHF-LIBOR-BBA-6M"));
assertNotNull(historicalTimeSeries);
LocalDateDoubleTimeSeries timeSeries = historicalTimeSeries.getTimeSeries();
assertNotNull(timeSeries);
assertEquals(5996, timeSeries.size());*/
// convert the definition into a derivative
/* List<Swap> swapDerivatives = Lists.newArrayList();
for (SwapDefinition swapDefinition : swapsDefinition) {
swapDerivatives.add(swapDefinition.toDerivative(TODAY, data, curvesClean));
}
List<Swap> frasDerivatives = Lists.newArrayList();
for (ForwardRateAgreementDefinition fraDefinition : frasDefinition) {
frasDerivatives.add(fraDefinition.toDerivative(TODAY, data, curvesClean));
}
List<Swap> zcsDerivatives = Lists.newArrayList();
for (DepositZeroDefinition zcDefinition : zcsDefinition) {
zcsDerivatives.add(zcDefinition.toDerivative(TODAY, data, curvesClean));
}*/
// Check the npv
s_logger.warn("Got {} trades", trades.size());
}
/**
* Compute the sensitivity by finite difference on all points. The curves must be interpolated
* yield curves. Only the discounting and forward curves sensitivity is computed.
*
* @param instrument The instrument.
* @param hwcurves The provider: all discounting, forward and issuer curves should be of the type
* YieldCurve with InterpolatedDoublesCurve.
* @return The parameter sensitivity.
*/
public SimpleParameterSensitivity calculateSensitivity(
final InstrumentDerivative instrument, final HullWhiteOneFactorProviderDiscount hwcurves) {
SimpleParameterSensitivity result = new SimpleParameterSensitivity();
// Discounting
final Set<Currency> ccyDiscounting = hwcurves.getMulticurveProvider().getCurrencies();
for (final Currency ccy : ccyDiscounting) {
final YieldAndDiscountCurve curve = hwcurves.getMulticurveProvider().getCurve(ccy);
ArgChecker.isTrue(curve instanceof YieldCurve, "Curve should be a YieldCurve");
final YieldCurve curveYield = (YieldCurve) curve;
ArgChecker.isTrue(
curveYield.getCurve() instanceof InterpolatedDoublesCurve,
"Yield curve should be based on InterpolatedDoublesCurve");
final InterpolatedDoublesCurve curveInt = (InterpolatedDoublesCurve) curveYield.getCurve();
final int nbNodePoint = curveInt.getXDataAsPrimitive().length;
final double[] sensitivity = new double[nbNodePoint];
for (int loopnode = 0; loopnode < nbNodePoint; loopnode++) {
final double[] yieldBumpedPlus = curveInt.getYDataAsPrimitive().clone();
yieldBumpedPlus[loopnode] += _shift;
final YieldAndDiscountCurve dscBumpedPlus =
new YieldCurve(
curveInt.getName(),
new InterpolatedDoublesCurve(
curveInt.getXDataAsPrimitive(),
yieldBumpedPlus,
curveInt.getInterpolator(),
true));
final HullWhiteOneFactorProviderDiscount marketDscBumpedPlus =
new HullWhiteOneFactorProviderDiscount(
hwcurves.getMulticurveProvider().withDiscountFactor(ccy, dscBumpedPlus),
hwcurves.getHullWhiteParameters(),
hwcurves.getHullWhiteCurrency());
final double valueBumpedPlus = instrument.accept(_valueCalculator, marketDscBumpedPlus);
final double[] yieldBumpedMinus = curveInt.getYDataAsPrimitive().clone();
yieldBumpedMinus[loopnode] -= _shift;
final YieldAndDiscountCurve dscBumpedMinus =
new YieldCurve(
curveInt.getName(),
new InterpolatedDoublesCurve(
curveInt.getXDataAsPrimitive(),
yieldBumpedMinus,
curveInt.getInterpolator(),
true));
final HullWhiteOneFactorProviderDiscount marketDscBumpedMinus =
new HullWhiteOneFactorProviderDiscount(
hwcurves.getMulticurveProvider().withDiscountFactor(ccy, dscBumpedMinus),
hwcurves.getHullWhiteParameters(),
hwcurves.getHullWhiteCurrency());
final double valueBumpedMinus = instrument.accept(_valueCalculator, marketDscBumpedMinus);
sensitivity[loopnode] = (valueBumpedPlus - valueBumpedMinus) / (2 * _shift);
}
final String name = hwcurves.getMulticurveProvider().getName(ccy);
result = result.plus(name, new DoubleMatrix1D(sensitivity));
}
// Forward ON
final Set<IndexON> indexON = hwcurves.getMulticurveProvider().getIndexesON();
for (final IndexON index : indexON) {
final YieldAndDiscountCurve curve = hwcurves.getMulticurveProvider().getCurve(index);
ArgChecker.isTrue(curve instanceof YieldCurve, "Curve should be a YieldCurve");
final YieldCurve curveYield = (YieldCurve) curve;
ArgChecker.isTrue(
curveYield.getCurve() instanceof InterpolatedDoublesCurve,
"Yield curve should be based on InterpolatedDoublesCurve");
final InterpolatedDoublesCurve curveInt = (InterpolatedDoublesCurve) curveYield.getCurve();
final int nbNodePoint = curveInt.getXDataAsPrimitive().length;
final double[] sensitivity = new double[nbNodePoint];
for (int loopnode = 0; loopnode < nbNodePoint; loopnode++) {
final double[] yieldBumpedPlus = curveInt.getYDataAsPrimitive().clone();
yieldBumpedPlus[loopnode] += _shift;
final YieldAndDiscountCurve dscBumpedPlus =
new YieldCurve(
curveInt.getName(),
new InterpolatedDoublesCurve(
curveInt.getXDataAsPrimitive(),
yieldBumpedPlus,
curveInt.getInterpolator(),
true));
final HullWhiteOneFactorProviderDiscount marketFwdBumpedPlus =
new HullWhiteOneFactorProviderDiscount(
hwcurves.getMulticurveProvider().withForward(index, dscBumpedPlus),
hwcurves.getHullWhiteParameters(),
hwcurves.getHullWhiteCurrency());
final double valueBumpedPlus = instrument.accept(_valueCalculator, marketFwdBumpedPlus);
final double[] yieldBumpedMinus = curveInt.getYDataAsPrimitive().clone();
yieldBumpedMinus[loopnode] -= _shift;
final YieldAndDiscountCurve dscBumpedMinus =
new YieldCurve(
curveInt.getName(),
new InterpolatedDoublesCurve(
curveInt.getXDataAsPrimitive(),
yieldBumpedMinus,
curveInt.getInterpolator(),
true));
final HullWhiteOneFactorProviderDiscount marketFwdBumpedMinus =
new HullWhiteOneFactorProviderDiscount(
hwcurves.getMulticurveProvider().withForward(index, dscBumpedMinus),
hwcurves.getHullWhiteParameters(),
hwcurves.getHullWhiteCurrency());
final double valueBumpedMinus = instrument.accept(_valueCalculator, marketFwdBumpedMinus);
sensitivity[loopnode] = (valueBumpedPlus - valueBumpedMinus) / (2 * _shift);
}
final String name = hwcurves.getMulticurveProvider().getName(index);
result = result.plus(name, new DoubleMatrix1D(sensitivity));
}
// Forward Ibor - symmetrical
final Set<IborIndex> indexForward = hwcurves.getMulticurveProvider().getIndexesIbor();
for (final IborIndex index : indexForward) {
final YieldAndDiscountCurve curve = hwcurves.getMulticurveProvider().getCurve(index);
ArgChecker.isTrue(curve instanceof YieldCurve, "Curve should be a YieldCurve");
final YieldCurve curveYield = (YieldCurve) curve;
ArgChecker.isTrue(
curveYield.getCurve() instanceof InterpolatedDoublesCurve,
"Yield curve should be based on InterpolatedDoublesCurve");
final InterpolatedDoublesCurve curveInt = (InterpolatedDoublesCurve) curveYield.getCurve();
final int nbNodePoint = curveInt.getXDataAsPrimitive().length;
final double[] sensitivity = new double[nbNodePoint];
for (int loopnode = 0; loopnode < nbNodePoint; loopnode++) {
final double[] yieldBumpedPlus = curveInt.getYDataAsPrimitive().clone();
yieldBumpedPlus[loopnode] += _shift;
final YieldAndDiscountCurve dscBumpedPlus =
new YieldCurve(
curveInt.getName(),
new InterpolatedDoublesCurve(
curveInt.getXDataAsPrimitive(),
yieldBumpedPlus,
curveInt.getInterpolator(),
true));
final HullWhiteOneFactorProviderDiscount marketFwdBumpedPlus =
new HullWhiteOneFactorProviderDiscount(
hwcurves.getMulticurveProvider().withForward(index, dscBumpedPlus),
hwcurves.getHullWhiteParameters(),
hwcurves.getHullWhiteCurrency());
final double valueBumpedPlus = instrument.accept(_valueCalculator, marketFwdBumpedPlus);
final double[] yieldBumpedMinus = curveInt.getYDataAsPrimitive().clone();
yieldBumpedMinus[loopnode] -= _shift;
final YieldAndDiscountCurve dscBumpedMinus =
new YieldCurve(
curveInt.getName(),
new InterpolatedDoublesCurve(
curveInt.getXDataAsPrimitive(),
yieldBumpedMinus,
curveInt.getInterpolator(),
true));
final HullWhiteOneFactorProviderDiscount marketFwdBumpedMinus =
new HullWhiteOneFactorProviderDiscount(
hwcurves.getMulticurveProvider().withForward(index, dscBumpedMinus),
hwcurves.getHullWhiteParameters(),
hwcurves.getHullWhiteCurrency());
final double valueBumpedMinus = instrument.accept(_valueCalculator, marketFwdBumpedMinus);
sensitivity[loopnode] = (valueBumpedPlus - valueBumpedMinus) / (2 * _shift);
}
final String name = hwcurves.getMulticurveProvider().getName(index);
result = result.plus(name, new DoubleMatrix1D(sensitivity));
}
return result;
}
@Test
public void curveSensitivityFRA() {
final YieldCurveBundle curves = TestsDataSetsSABR.createCurves1();
final double deltaShift = 1.0E-8;
final double pv = FRA_METHOD.presentValue(FRA, curves).getAmount();
// 1. Forward curve sensitivity
final String bumpedCurveName = "Bumped Curve";
final String[] bumpedCurvesForwardName = {FUNDING_CURVE_NAME, bumpedCurveName};
final ForwardRateAgreement fraBumpedForward =
(ForwardRateAgreement) FRA_DEFINITION.toDerivative(REFERENCE_DATE, bumpedCurvesForwardName);
final YieldAndDiscountCurve curveForward = curves.getCurve(FORWARD_CURVE_NAME);
final double[] timeForward = new double[2];
timeForward[0] = FRA.getFixingPeriodStartTime();
timeForward[1] = FRA.getFixingPeriodEndTime();
final int nbForwardDate = timeForward.length;
final double[] yieldsForward = new double[nbForwardDate + 1];
final double[] nodeTimesForward = new double[nbForwardDate + 1];
yieldsForward[0] = curveForward.getInterestRate(0.0);
for (int i = 0; i < nbForwardDate; i++) {
nodeTimesForward[i + 1] = timeForward[i];
yieldsForward[i + 1] = curveForward.getInterestRate(nodeTimesForward[i + 1]);
}
final YieldAndDiscountCurve tempCurveForward =
YieldCurve.from(
InterpolatedDoublesCurve.fromSorted(
nodeTimesForward, yieldsForward, new LinearInterpolator1D()));
final double[] sensiPvForwardFD = new double[nbForwardDate];
for (int i = 0; i < nbForwardDate; i++) {
final YieldAndDiscountCurve bumpedCurveForward =
tempCurveForward.withSingleShift(nodeTimesForward[i + 1], deltaShift);
final YieldCurveBundle curvesBumpedForward = new YieldCurveBundle();
curvesBumpedForward.addAll(curves);
curvesBumpedForward.setCurve("Bumped Curve", bumpedCurveForward);
final double bumpedPv =
FRA_METHOD.presentValue(fraBumpedForward, curvesBumpedForward).getAmount();
sensiPvForwardFD[i] = (bumpedPv - pv) / deltaShift;
}
final double[] nodeTimesForwardMethod =
new double[] {FRA.getFixingPeriodStartTime(), FRA.getFixingPeriodEndTime()};
final double[] sensiForwardMethod =
SensitivityFiniteDifference.curveSensitivity(
fraBumpedForward,
curves,
pv,
FORWARD_CURVE_NAME,
bumpedCurveName,
nodeTimesForwardMethod,
deltaShift,
FRA_METHOD);
assertEquals(
"Sensitivity finite difference method: number of node", 2, sensiForwardMethod.length);
for (int loopnode = 0; loopnode < sensiForwardMethod.length; loopnode++) {
assertEquals(
"Sensitivity finite difference method: node sensitivity",
sensiPvForwardFD[loopnode],
sensiForwardMethod[loopnode]);
}
// 2. Funding curve sensitivity
final String[] bumpedCurvesFundingName = {bumpedCurveName, FORWARD_CURVE_NAME};
final ForwardRateAgreement fraBumped =
(ForwardRateAgreement) FRA_DEFINITION.toDerivative(REFERENCE_DATE, bumpedCurvesFundingName);
final YieldAndDiscountCurve curveFunding = curves.getCurve(FUNDING_CURVE_NAME);
final double[] yieldsFunding = new double[2];
final double[] nodeTimesFunding = new double[2];
yieldsFunding[0] = curveFunding.getInterestRate(0.0);
nodeTimesFunding[1] = FRA.getPaymentTime();
yieldsFunding[1] = curveFunding.getInterestRate(nodeTimesFunding[1]);
final YieldAndDiscountCurve tempCurveFunding =
YieldCurve.from(
InterpolatedDoublesCurve.fromSorted(
nodeTimesFunding, yieldsFunding, new LinearInterpolator1D()));
final YieldAndDiscountCurve bumpedCurve =
tempCurveFunding.withSingleShift(nodeTimesFunding[1], deltaShift);
final YieldCurveBundle curvesBumped = new YieldCurveBundle();
curvesBumped.addAll(curves);
curvesBumped.replaceCurve("Bumped Curve", bumpedCurve);
final double bumpedPvDsc = FRA_METHOD.presentValue(fraBumped, curvesBumped).getAmount();
final double[] resDsc = new double[1];
resDsc[0] = (bumpedPvDsc - pv) / deltaShift;
final double[] nodeTimesFundingMethod = new double[] {FRA.getPaymentTime()};
final double[] sensiFundingMethod =
SensitivityFiniteDifference.curveSensitivity(
fraBumped,
curves,
pv,
FUNDING_CURVE_NAME,
bumpedCurveName,
nodeTimesFundingMethod,
deltaShift,
FRA_METHOD);
assertEquals(
"Sensitivity finite difference method: number of node", 1, sensiFundingMethod.length);
for (int loopnode = 0; loopnode < sensiFundingMethod.length; loopnode++) {
assertEquals(
"Sensitivity finite difference method: node sensitivity",
resDsc[loopnode],
sensiFundingMethod[loopnode]);
}
}
@Override
public Set<ComputedValue> execute(
final FunctionExecutionContext executionContext,
final FunctionInputs inputs,
final ComputationTarget target,
final Set<ValueRequirement> desiredValues)
throws AsynchronousExecution {
final Object originalCurveObject = inputs.getValue(YIELD_CURVE);
if (originalCurveObject == null) {
throw new OpenGammaRuntimeException("Could not get original curve");
}
ValueProperties resultCurveProperties = null;
String absoluteToleranceName = null;
String relativeToleranceName = null;
String iterationsName = null;
String decompositionName = null;
String useFiniteDifferenceName = null;
for (final ValueRequirement desiredValue : desiredValues) {
if (desiredValue.getValueName().equals(YIELD_CURVE)) {
absoluteToleranceName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_ROOT_FINDER_ABSOLUTE_TOLERANCE);
relativeToleranceName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_ROOT_FINDER_RELATIVE_TOLERANCE);
iterationsName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_ROOT_FINDER_MAX_ITERATIONS);
decompositionName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_DECOMPOSITION);
useFiniteDifferenceName =
desiredValue.getConstraint(
MultiYieldCurvePropertiesAndDefaults.PROPERTY_USE_FINITE_DIFFERENCE);
resultCurveProperties = desiredValue.getConstraints().copy().get();
break;
}
}
if (resultCurveProperties == null) {
throw new OpenGammaRuntimeException("Could not get result curve properties");
}
final ValueProperties resultJacobianProperties = resultCurveProperties.withoutAny(CURVE);
ZonedDateTime valuationDateTime =
executionContext
.getValuationTime()
.atZone(executionContext.getValuationClock().getZone());
final HolidaySource holidaySource =
OpenGammaExecutionContext.getHolidaySource(executionContext);
final ConventionSource conventionSource =
OpenGammaExecutionContext.getConventionSource(executionContext);
final Calendar calendar = CalendarUtils.getCalendar(holidaySource, _currency);
final DepositConvention convention =
conventionSource.getSingle(
ExternalId.of(SCHEME_NAME, getConventionName(_currency, DEPOSIT)),
DepositConvention.class);
final int spotLag = convention.getSettlementDays();
final ExternalId conventionSettlementRegion = convention.getRegionCalendar();
ZonedDateTime spotDate;
if (spotLag == 0 && conventionSettlementRegion == null) {
spotDate = valuationDateTime;
} else {
spotDate = ScheduleCalculator.getAdjustedDate(valuationDateTime, spotLag, calendar);
;
}
final YieldCurveBundle curves = new YieldCurveBundle();
final String fullYieldCurveName = _originalCurveName + "_" + _currency;
curves.setCurve(fullYieldCurveName, (YieldAndDiscountCurve) originalCurveObject);
final int n = _impliedDefinition.getStrips().size();
final double[] t = new double[n];
final double[] r = new double[n];
int i = 0;
final DayCount dayCount =
DayCountFactory.INSTANCE.getDayCount(
"Act/360"); // TODO: Get the convention from the curve.
final String impliedDepositCurveName = _curveCalculationConfig + "_" + _currency.getCode();
final List<InstrumentDerivative> derivatives = new ArrayList<>();
for (final FixedIncomeStrip strip : _impliedDefinition.getStrips()) {
final Tenor tenor = strip.getCurveNodePointTime();
final ZonedDateTime paymentDate =
ScheduleCalculator.getAdjustedDate(
spotDate, tenor.getPeriod(), MOD_FOL, calendar, true);
final double startTime = TimeCalculator.getTimeBetween(valuationDateTime, spotDate);
final double endTime = TimeCalculator.getTimeBetween(valuationDateTime, paymentDate);
final double accrualFactor = dayCount.getDayCountFraction(spotDate, paymentDate, calendar);
final Cash cashFXCurve =
new Cash(_currency, startTime, endTime, 1, 0, accrualFactor, fullYieldCurveName);
final double parRate = METHOD_CASH.parRate(cashFXCurve, curves);
final Cash cashDepositCurve =
new Cash(_currency, startTime, endTime, 1, 0, accrualFactor, impliedDepositCurveName);
derivatives.add(cashDepositCurve);
t[i] = endTime;
r[i++] = parRate;
}
final CombinedInterpolatorExtrapolator interpolator =
CombinedInterpolatorExtrapolatorFactory.getInterpolator(
_interpolatorName, _leftExtrapolatorName, _rightExtrapolatorName);
final double absoluteTolerance = Double.parseDouble(absoluteToleranceName);
final double relativeTolerance = Double.parseDouble(relativeToleranceName);
final int iterations = Integer.parseInt(iterationsName);
final Decomposition<?> decomposition =
DecompositionFactory.getDecomposition(decompositionName);
final boolean useFiniteDifference = Boolean.parseBoolean(useFiniteDifferenceName);
final LinkedHashMap<String, double[]> curveNodes = new LinkedHashMap<>();
final LinkedHashMap<String, Interpolator1D> interpolators = new LinkedHashMap<>();
curveNodes.put(impliedDepositCurveName, t);
interpolators.put(impliedDepositCurveName, interpolator);
final FXMatrix fxMatrix = new FXMatrix();
final YieldCurveBundle knownCurve = new YieldCurveBundle();
final MultipleYieldCurveFinderDataBundle data =
new MultipleYieldCurveFinderDataBundle(
derivatives, r, knownCurve, curveNodes, interpolators, useFiniteDifference, fxMatrix);
final NewtonVectorRootFinder rootFinder =
new BroydenVectorRootFinder(
absoluteTolerance, relativeTolerance, iterations, decomposition);
final Function1D<DoubleMatrix1D, DoubleMatrix1D> curveCalculator =
new MultipleYieldCurveFinderFunction(data, PAR_RATE_CALCULATOR);
final Function1D<DoubleMatrix1D, DoubleMatrix2D> jacobianCalculator =
new MultipleYieldCurveFinderJacobian(data, PAR_RATE_SENSITIVITY_CALCULATOR);
final double[] fittedYields =
rootFinder.getRoot(curveCalculator, jacobianCalculator, new DoubleMatrix1D(r)).getData();
final DoubleMatrix2D jacobianMatrix =
jacobianCalculator.evaluate(new DoubleMatrix1D(fittedYields));
final YieldCurve impliedDepositCurve =
new YieldCurve(
impliedDepositCurveName,
InterpolatedDoublesCurve.from(t, fittedYields, interpolator));
final ValueSpecification curveSpec =
new ValueSpecification(YIELD_CURVE, target.toSpecification(), resultCurveProperties);
final ValueSpecification jacobianSpec =
new ValueSpecification(
YIELD_CURVE_JACOBIAN, target.toSpecification(), resultJacobianProperties);
return Sets.newHashSet(
new ComputedValue(curveSpec, impliedDepositCurve),
new ComputedValue(jacobianSpec, jacobianMatrix));
}