// determine the curve parameter sensitivities, removing the curency
private UnitParameterSensitivities extractSensitivities(
ResolvedTrade trade, RatesProvider provider) {
CalibrationMeasure<ResolvedTrade> measure = getMeasure(trade);
CurrencyParameterSensitivities paramSens = measure.sensitivities(trade, provider);
UnitParameterSensitivities unitSens = UnitParameterSensitivities.empty();
for (CurrencyParameterSensitivity ccySens : paramSens.getSensitivities()) {
unitSens = unitSens.combinedWith(ccySens.toUnitParameterSensitivity());
}
return unitSens;
}
