| numericString {cwhmisc} | R Documentation |
Functions for testing strings and for conversion of integers to bases other than decimal as string representations.
numericString(str) allDigits(str) intToASCII(i) intToBase(i,Base=2) intToOct(i) intToHex(i)
str |
A character vector. |
i |
Integer number to be converted. |
Base |
Number base to be converted to. |
numericString Test whether the elements of a character vector
represent legal numbers only.
allDigits Test whether the elements of a character vector consist of digits only.
intToASCII Show character or octal representation at a place in the ASCII sequence.
intToBase Convert an integer number to string representation in a base between 2 and 16 inclusive.
intToOct Convert an integer number to string representation in octal.
intToHex Convert an integer number to string representation in hexadecimal.
TRUE, FALSE, string representations
Christian W. Hoffmann <c-w.hoffmann@sunrise.ch>
http://www.wsl.ch/personal_homepages/hoffmann/index_EN
allDigits(c("1231","89a8742")) # TRUE FALSE
numericString(c("1231","8.9e-2",".7d2")) # [1] TRUE TRUE FALSE
intToASCII(1:255)
sapply(1:50,intToBase,2)
sapply(1:50,intToBase,7)
sapply(1:50,intToOct)
sapply(1:50,intToHex)