public override void setParams(Vector parameters)
{
base.setParams(parameters);
int k = covarProxy_.volatilityModel().parameters().Count;
covarProxy_.volatilityModel().setParams(new List <Parameter>(arguments_.GetRange(0, k)));
covarProxy_.correlationModel().setParams(new List <Parameter>(arguments_.GetRange(k, arguments_.Count - k)));
swaptionVola = null;
}