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rPACI  

Placido Analysis of Corneal Irregularity
View on CRAN: Click here


Download and install rPACI package within the R console
Install from CRAN:
install.packages("rPACI")

Install from Github:
library("remotes")
install_github("cran/rPACI")

Install by package version:
library("remotes")
install_version("rPACI", "0.2.2")



Attach the package and use:
library("rPACI")
Maintained by
Darío Ramos-López
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2019-02-11
Latest Update: 2021-11-04
Description:
Analysis of corneal data obtained from a Placido disk corneal topographer with calculation of irregularity indices. This package performs analyses of corneal data obtained from a Placido disk corneal topographer, with the calculation of the Placido irregularity indices and the posterior analysis. The package is intended to be easy to use by a practitioner, providing a simple interface and yielding easily interpretable results. A corneal topographer is an ophthalmic clinical device that obtains measurements in the cornea (the anterior part of the eye). A Placido disk corneal topographer makes use of the Placido disk [Rowsey et al. (1981)], which produce a circular pattern of measurement nodes. The raw information measured by such a topographer is used by practitioners to analyze curvatures, to study optical aberrations, or to diagnose specific conditions of the eye (e.g. keratoconus, an important corneal disease). The rPACI package allows the calculation of the corneal irregularity indices described in [Castro-Luna et al. (2020)], [Ramos-Lopez et al. (2013)], and [Ramos-Lopez et al. (2011)]. It provides a simple interface to read corneal topography data files as exported by a typical Placido disk topographer, to compute the irregularity indices mentioned before, and to display summary plots that are easy to interpret for a clinician.
How to cite:
Darío Ramos-López (2019). rPACI: Placido Analysis of Corneal Irregularity. R package version 0.2.2, https://cran.r-project.org/web/packages/rPACI. Accessed 25 Aug. 2026.
Previous versions and publish date:
(2026-07-09 06:47), 0.1.1 (2019-02-11 22:40), 0.1.2 (2020-07-02 11:20), 0.2.1 (2021-08-13 12:00)
Other packages that cited rPACI R package
View rPACI citation profile
Other R packages that rPACI depends, imports, suggests or enhances
Complete documentation for rPACI
Functions, R codes and Examples using the rPACI R package
Some associated functions: analyzeDataset . analyzeEvolution . analyzeFile . analyzeFolder . computePlacidoIndices . plotSingleCornea . readCSO . readFile . readrPACI . simulateData . writerPACI . 
Some associated R codes: indices.R . plots.R . readData.R . simulateData.R . wrapperFunctions.R . writeData.R .  Full rPACI package functions and examples
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