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ClimateAnomaly  

Rainfall and Temperature Anomaly Indices for Climate Analysis
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("ClimateAnomaly", "1.0.0")



Attach the package and use:
library("ClimateAnomaly")
Maintained by
Ranjit Kumar Paul
[Scholar Profile | Author Map]
All associated links for this package
Description:
Computes rainfall anomaly indices and a standardised temperature anomaly from monthly or annual precipitation and temperature data supplied by the user. The rainfall indices are the Rainfall Anomaly Index (RAI; Van Rooy, 1965), the Modified Rainfall Anomaly Index (MRAI) and the Standardized Rainfall Anomaly Index (SRAI) of Ekpetere (2025) <doi:10.1016/j.jenvman.2025.124160>, the Simplified Standardized Precipitation Index (SSPI) of Raziei (2021) <doi:10.1016/j.jhydrol.2021.126761>, and the Standardized Precipitation Index (SPI; McKee et al., 1993). The temperature anomaly is a z-score computed within each calendar month. All indices are computed group-wise, so the user can stratify by any combination of spatial units (state, district, grid cell) and calendar month, and each value can be classified into a descriptive severity class.
How to cite:
Ranjit Kumar Paul (). ClimateAnomaly: Rainfall and Temperature Anomaly Indices for Climate Analysis. R package version 1.0.0, https://cran.r-project.org/web/packages/ClimateAnomaly. Accessed 24 Oct. 2026.
Previous versions and publish date:
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