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PDIndex  

Disease Intensity and Progress Curve Indices for Plant Pathology
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("PDIndex", "0.1.0")



Attach the package and use:
library("PDIndex")
Maintained by
Dr. Pramit Pandit
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-01-15
Latest Update: 2026-01-15
Description:
Provides standardised functions for quantifying plant disease intensity and disease development over time. The package implements Percent Disease Index (PDI) for assessing overall disease severity based on categorical ratings, Area Under the Disease Progress Curve (AUDPC) for summarizing disease progression using trapezoidal integration, and Relative AUDPC (rAUDPC) for expressing disease development relative to the maximum possible severity over the observation period. These indices are widely used in plant pathology and epidemiology for comparing treatments, cultivars, and environments.
How to cite:
Dr. Pramit Pandit (2026). PDIndex: Disease Intensity and Progress Curve Indices for Plant Pathology. R package version 0.1.0, https://cran.r-project.org/web/packages/PDIndex. Accessed 24 Oct. 2026.
Previous versions and publish date:
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Complete documentation for PDIndex
Functions, R codes and Examples using the PDIndex R package
Full PDIndex package functions and examples
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