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phonenumber

Convert Letters to Numbers and Back as on a Telephone Keypad

v0.2.3 · May 1, 2021 · MIT + file LICENSE

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").

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CRAN Check Status

14 OK
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r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-macos-arm64 OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Version History

new 0.2.3 Mar 10, 2026
updated 0.2.3 ← 0.2.2 diff Apr 30, 2021
updated 0.2.2 ← 0.2.1 diff Sep 6, 2015
updated 0.2.1 ← 0.2.0 diff Aug 21, 2015
updated 0.2.0 ← 0.1.0 diff Jul 31, 2015
new 0.1.0 Jul 9, 2015