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Periodic Splinets

Nassar, Hiba and Podgórski, Krzysztof LU (2025) In Communications in Statistics: Simulation and Computation p.1-16
Abstract
Periodic splines represent a specific category of splines, defined across a series of knots on a circle, making them particularly suitable for addressing interpolation challenges associated with closed curves and representing functions defined on a circle. Although the term ‘periodic’ suggests temporal context, the periodic splines can represent any data that have a circle as their domain. This paper introduces a method for implementing objects that represent such splines and outlines the derivation of an efficient orthogonal basis. The newly proposed orthonormalized basis, referred to as a periodic splinet, builds upon concepts and tools previously introduced for interval-based splines. Employing this methodology, periodic splines and... (More)
Periodic splines represent a specific category of splines, defined across a series of knots on a circle, making them particularly suitable for addressing interpolation challenges associated with closed curves and representing functions defined on a circle. Although the term ‘periodic’ suggests temporal context, the periodic splines can represent any data that have a circle as their domain. This paper introduces a method for implementing objects that represent such splines and outlines the derivation of an efficient orthogonal basis. The newly proposed orthonormalized basis, referred to as a periodic splinet, builds upon concepts and tools previously introduced for interval-based splines. Employing this methodology, periodic splines and splinets have been integrated into an updated version of the R package, Splinets 1.5.0. Additionally, the computational tools developed in this study have been applied to the functional analysis of a prototypical example of circular functional data, namely wind direction and speeds. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
in
Communications in Statistics: Simulation and Computation
pages
1 - 16
publisher
Taylor & Francis
external identifiers
  • scopus:85214659989
ISSN
0361-0918
DOI
10.1080/03610918.2024.2443782
language
English
LU publication?
yes
id
ffd861f4-7fb7-4a0c-8081-e3c10e7099d7
date added to LUP
2025-03-25 12:29:04
date last changed
2025-04-04 13:53:22
@article{ffd861f4-7fb7-4a0c-8081-e3c10e7099d7,
  abstract     = {{Periodic splines represent a specific category of splines, defined across a series of knots on a circle, making them particularly suitable for addressing interpolation challenges associated with closed curves and representing functions defined on a circle. Although the term ‘periodic’ suggests temporal context, the periodic splines can represent any data that have a circle as their domain. This paper introduces a method for implementing objects that represent such splines and outlines the derivation of an efficient orthogonal basis. The newly proposed orthonormalized basis, referred to as a periodic splinet, builds upon concepts and tools previously introduced for interval-based splines. Employing this methodology, periodic splines and splinets have been integrated into an updated version of the R package, Splinets 1.5.0. Additionally, the computational tools developed in this study have been applied to the functional analysis of a prototypical example of circular functional data, namely wind direction and speeds.}},
  author       = {{Nassar, Hiba and Podgórski, Krzysztof}},
  issn         = {{0361-0918}},
  language     = {{eng}},
  pages        = {{1--16}},
  publisher    = {{Taylor & Francis}},
  series       = {{Communications in Statistics: Simulation and Computation}},
  title        = {{Periodic Splinets}},
  url          = {{http://dx.doi.org/10.1080/03610918.2024.2443782}},
  doi          = {{10.1080/03610918.2024.2443782}},
  year         = {{2025}},
}