numberToLetter {phonenumber} | R Documentation |
Convert numbers to letters as on a telephone's keypad
Description
Take a character vector (i.e., a telephone number) and convert it to all all possible letter combinations as on from a telephone's key pad
Usage
numberToLetter(value, decreasing = FALSE, qz = 1)
Arguments
value |
An input value as a character vector with one element (a string) |
decreasing |
Whether to sort the results in alphabetical order or not |
qz |
Whether to assign q and z to zero (qz = 0) or not (any other value) |
Value
A character vector of letters and dashes based on value
Examples
# Convert a string or a vector of numeric characters
numberToLetter("911") # returns "W11" "X11" "Y11" "Z11"
x <- "911"
numberToLetter(x) # also returns "W11" "X11" "Y11" "Z11"
# Convert a number directly
numberToLetter(911) # also returns "W11" "X11" "Y11" "Z11"
# Convert an alphanumeric string (letters are returned as is and
# non-alphanumeric characters are returned as dashes)
numberToLetter("dial 911!") # returns "DIAL-W11-" "DIAL-X11-" "DIAL-Y11-" "DIAL-Z11-"
# Specifying qz = 0 maps "q" and "z" to 0 instead of 7 and 9
numberToLetter("000") # returns "000"
numberToLetter("000", qz = 0) # returns "QQQ" "QQZ" "QZQ" "QZZ" "ZQQ" "ZQZ" "ZZQ" "ZZZ"
[Package phonenumber version 0.2.3 Index]