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Integral Transformation Methods for SDR in Regression

0packages depend
3.3Kdownloads / year
–test coverage
13/13flavors OK

Overview

About

The itdr() routine allows for the estimation of sufficient dimension reduction subspaces in univariate regression such as the central mean subspace or central subspace in regression. This is achieved using Fourier transformation methods proposed by Zhu and Zeng (2006) doi:10.1198/016214506000000140, convolution transformation methods proposed by Zeng and Zhu (2010) doi:10.1016/j.jmva.2009.08.004, and iterative Hessian transformation methods proposed by Cook and Li (2002) doi:10.1214/aos/1021379861. Additionally, mitdr() function provides optimal estimators for sufficient dimension reduction subspaces in multivariate regression by optimizing a discrepancy function using a Fourier transform approach proposed by Weng and Yin (2022) doi:10.5705/ss.202020.0312, and selects the sufficient variables using Fourier transform sparse inverse regression estimators proposed by Weng (2022) doi:10.1016/j.csda.2021.107380.

Changes in 2.0.1
  • New Features
  • Integrate all the multivariate sufficient dimension reduction methods in regression within the _mitdr()_ function.
  • Integrate _wh()_, _wx()_, and _wy()_ functions into a single function _hyperPara()_.
  • Enhancements
  • Integrate all the uni-variate sufficient dimension reduction methods in regression within the _itdr()_ function. The _itdr()_ function now facilitate to use Fourier transformation method (FM), Convolution Transformation method (CM), Iterative hessian transformation method (iht), and inverse Fourier transformation method (invFM).
  • Bug Fixes
  • Fixed the errors in _recumbent_ dataset.

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 16.2 min · r-release-macos-x86_64
Status changes
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK14 OK2026-03-10
Advisories

none known

Documentation

In release 2.0.1
READMENoVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 2.0.1Citation fileYes · computed when R runs itWebsitenot declared in DESCRIPTION
Help pages
11
Examples that run
50%2 run in a plain check · 1 only when donttest examples are enabled (R CMD check --as-cran) · 1 never run
Exported functions with examples
67%
Documented parameters
99%
Return-value docs
100%
Help pages citing references
64%
Vignettes (1)

Downloads

3.3K
CRAN downloads in the past year
Rank #10,662 · ~9/day · ~277/mo
Daily download trend is not available in this view yet.
26630 days
98190 days
3.3K1 year
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Also on351 r2u6 autocran

Dependencies

Declared dependencies
7 external dependencies (excludes base and recommended)

Installing itdr adds 26 packages (16 with compiled code, 20 MB of source tarballs). Heaviest: stringi 11 MB, Rcpp 1.8 MB, vctrs 1.0 MB.

Depends (1)
R >= 3.5.0
Imports (7)
LinkingTo (0)
none
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

Datasets

People & History

People (3)
Author, Maintainer since 1.0 (2021)
Contributor, Author
Contributor, Author · added in 2.0.0
Releases (4)

Pick two releases to compare their code metrics.

  • R
    R 4.6.0 released · 2026-04-24
  • R
    R 4.5.0 released · 2025-04-11
  • R
    R 4.4.0 released · 2024-04-24
  • 2.0.1Latest
    record
    2024-02-26 · current release · diff ↗ ·
    removed 6 exports
    admmft, fm_xire, invFM, wh, wx, wy
    added 2 exports
    hyperPara, mitdr
  • 2.0.0
    record
    2023-06-23 · diff ↗ ·
    added 2 exports
    admmft, fm_xire
  • R
    R 4.3.0 released · 2023-04-21
  • R
    R 4.2.0 released · 2022-04-22
  • 1.2.0
    record
    2022-04-12 · diff ↗
  • 1.0
    record
    2021-07-23
  • R
    R 4.1.0 released · 2021-05-18

Package metadata

First published
2021-07-23
Total releases
4 / 5 yrs
License
GPL-2 | GPL-3 OSI
Minimum R
≥ 3.5.0
Bundled data
971 KB / 5 files
Download size
1.0 MB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("itdr")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for itdr version 2.0.1 [Data set]. HJJB, LLC. Data release v2026-10-24. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-24, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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