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This package was removed from CRAN on 2020-06-09. Its history is shown below.
Reason: check problems were not corrected in time. OpenMP error on macOS
Details below reflect version 1.0.0, its last release before removal.

TechPhD

1.0.0

Tests and Estimation of Covariance Change-Points for Hi-Dim Data

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Overview

About
Maintained by Ping-Shou Zhong1 releasesCRAN page ↗

An implementation of the procedures in Zhong et al. (2019) and Santo and Zhong (2020) for testing the homogeneity of covariance matrices, and estimating multiple change-points in high-dimensional (Hi-Dim) longitudinal/functional data with general temporospatial dependence. The null hypothesis of the homogeneity test is that all covariance matrices are equal at each time point. If the null hypothesis is rejected, the procedure further identifies the locations of the change points. Note: The package uses Open MP. Mac OS X users may need to update clang compiler so that it supports Open MP. References: Ping-Shou Zhong, Runze Li, Shawn Santo (2019) doi:10.1093/biomet/asz011 Shawn Santo, Ping-Shou Zhong (2020) arXiv:2005.01895.

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Tests · ratio 0.00
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Coverage
100%
Documentation · exports
2
Dependencies · direct

Documentation

Documentation
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Return-value docs
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TechPhD
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Dependencies

Declared dependencies
1 external dependency (excludes base and recommended)
Depends (1)
R >= 3.6.0
Imports (2)
mvtnormstats
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none
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none
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none
Reverse dependencies
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indirect (not tracked)

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Code & Tests

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People (4)
Maintainer (1)
Author, Maintainer
Authors (2)
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Contributors (2)
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Package Timeline

1 release. R releases are shown for context.

  • R
    R 4.1.0 released · 2021-05-18
  • archivedRemoved from CRAN
    2020-06-09
    check problems were not corrected in time OpenMP error on macOS
  • 1.0.0
    2020-05-25
  • R
    R 4.0.0 released · 2020-04-24

Package metadata

Total releases
1
License
GPL (>= 2) OSI
Minimum R
≥ 3.6.0
Download size
not tracked yet
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With dependencies
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Cite

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Run in R for the authors' preferred citation:

citation("TechPhD")
Zhong, P., Santo, S., Abdukadyrov, N., & Liu, B. (n.d.). TechPhD: Tests and Estimation of Covariance Change-Points for Hi-Dim Data (Version 1.0.0) [Computer software]. Retrieved August 14, 2026, from https://CRAN.R-project.org/package=TechPhD

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APA

Balamuta, J. J. (2026). R Observatory: Metrics for TechPhD version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-08-13. https://doi.org/10.5281/zenodo.21843040

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