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phonenumber  

Convert Letters to Numbers and Back as on a Telephone Keypad
View on CRAN: Click here


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

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

Install by package version:
library("remotes")
install_version("phonenumber", "0.2.3")



Attach the package and use:
library("phonenumber")
Maintained by
Steve Myles
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2015-07-10
Latest Update: 2021-05-01
Description:
Convert English letters to numbers or numbers to English letters as on a telephone keypad. When converting letters to numbers, a character vector is returned with "A," "B," or "C" becoming 2, "D," "E", or "F" becoming 3, etc. When converting numbers to letters, a character vector is returned with multiple elements (i.e., "2" becomes a vector of "A," "B," and "C").
How to cite:
Steve Myles (2015). phonenumber: Convert Letters to Numbers and Back as on a Telephone Keypad. R package version 0.2.3, https://cran.r-project.org/web/packages/phonenumber. Accessed 17 Jul. 2026.
Previous versions and publish date:
(2026-07-09 06:41), 0.1.0 (2015-07-10 20:33), 0.2.0 (2015-08-01 07:37), 0.2.1 (2015-08-22 10:50), 0.2.2 (2015-09-07 21:26)
Other packages that cited phonenumber R package
View phonenumber citation profile
Other R packages that phonenumber depends, imports, suggests or enhances
Complete documentation for phonenumber
Functions, R codes and Examples using the phonenumber R package
Some associated functions: letterToNumber . numberToLetter . phonenumber . 
Some associated R codes: letterToNumber.R . numberToLetter.R . phonenumber.R .  Full phonenumber package functions and examples
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