template class xf::fintech::internal::TreeInstrument¶

#include "tree_instrument.hpp"

Overview¶

TreeInstrument swaption, swap, cap floor, callable bond.

Parameters:

DT	date type supported include float and double.
IT	0: swaption, 1: swap, 2: cap floor, 3: callable bond
LEN2	maximum length of node of tree, which affects the latency and resources utilization.

template <
    typename DT,
    int IT,
    int LEN2
    >
class TreeInstrument

Methods¶

TreeInstrument¶

TreeInstrument ()

default constructor

reset¶

void reset (
    unsigned size,
    DT values [][LEN2]
    )

reset reset values

Parameters:

size	size of used values
values	process values to calulate NPV

stepback¶

stepback overload (1)¶

void stepback (
    unsigned j,
    unsigned index,
    DT discount,
    DT* probs,
    DT values1 [][LEN2],
    DT values2 [][LEN2]
    )

stepback calculate values of the current timepoint based on the values of the next timepoint for 1D framework.

Parameters:

j	node of tree structure
index	node of tree structure
discount	price of the current timepoint relative to the next timepoint.
probs	probability of node of tree structure
values1	process values to calulate NPV
values2	process values to calulate NPV

stepback overload (2)¶

void stepback (
    unsigned j,
    unsigned* index,
    unsigned modulo,
    DT discount,
    DT probs [2][3],
    DT values1 [][LEN2],
    DT values2 [][LEN2]
    )

stepback calculate values of the current timepoint based on the values of the next timepoint for 2D framework.

Parameters:

j	node of tree structure
index	node of tree structure
modulo	node length of the next timepoint
discount	price of the current timepoint relative to the next timepoint.
probs	probability of node of tree structure
values1	process values to calulate NPV
values2	process values to calulate NPV

adjustValues¶

void adjustValues (
    int i,
    int size,
    DT t,
    DT values1 [][LEN2],
    DT values2 [][LEN2]
    )

adjustValues Adjust value based on conditions

Parameters:

i	the current timepoint counter
size	node size of tree structure of the current timepoint
t	the current timepoint
values1	process values to calulate NPV
values2	process values to calulate NPV