# QuantLib_LocalBootstrap (3) - Linux Manuals

## QuantLib_LocalBootstrap: Localised-term-structure bootstrapper for most curve types.

## NAME

QuantLib::LocalBootstrap - Localised-term-structure bootstrapper for most curve types.

## SYNOPSIS

#include <ql/termstructures/localbootstrap.hpp>

### Public Member Functions

**LocalBootstrap** (Size localisation=2, bool forcePositive=true)

void **setup** (**Curve** *ts)

void **calculate** () const

## Detailed Description

### template<class Curve> class QuantLib::LocalBootstrap< Curve >

Localised-term-structure bootstrapper for most curve types.This algorithm enables a localised fitting for non-local interpolation methods.

As in the similar class (**IterativeBootstrap**) the input term structure is solved on a number of market instruments which are passed as a vector of handles to **BootstrapHelper** instances. Their maturities mark the boundaries of the interpolated segments.

Unlike the **IterativeBootstrap** class, the solution for each interpolated segment is derived using a local approximation. This restricts the risk profile s.t. the risk is localised. Therefore, we obtain a local IR risk profile whilst using a smoother interpolation method. Particularly good for the convex-monotone spline method.

## Author

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