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Deficit Index (DI)
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("di", "1.1.4")



Attach the package and use:
library("di")
Maintained by
Ilya Y. Zhbannikov
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2017-06-12
Latest Update: 2018-04-11
Description:
A set of utilities for calculating the Deficit (frailty) Index (DI) in gerontological studies. The deficit index was first proposed by Arnold Mitnitski and Kenneth Rockwood and represents a proxy measure of aging and also can be served as a sensitive predictor of survival. For more information, see (i)"Accumulation of Deficits as a Proxy Measure of Aging" by Arnold B. Mitnitski et al. (2001), The Scientific World Journal 1, ; (ii) "Frailty, fitness and late-life mortality in relation to chronological and biological age" by Arnold B Mitnitski et al. (2001), BMC Geriatrics2002 2(1), .
How to cite:
Ilya Y. Zhbannikov (2017). di: Deficit Index (DI). R package version 1.1.4, https://cran.r-project.org/web/packages/di. Accessed 26 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:31), 1.0.0 (2017-06-12 01:00), 1.1.1 (2017-09-06 05:05), 1.1.3 (2017-10-26 19:15)
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Complete documentation for di
Functions, R codes and Examples using the di R package
Some associated functions: di-di . 
Some associated R codes: di.R . general.R .  Full di package functions and examples
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