| abbreviate {base} | R Documentation |
The algorithm used is similar to that of S.
First spaces at the beginning of the word are stripped.
Then any other spaces are stripped.
Next lower case vowels are removed followed by lower case consonants.
Finally if the abbreviation is still longer than minlength
upper case letters are stripped.
Letters are always stripped from the end of the word first.
If an element of names.arg contains more than one word (words
are separted by space) then at least one letter from each word will be
retained.
If a single string is passed it is abbreviated in the same manner as a
vector of strings.
If use.classes is FALSE then the only distinction is to
be between letters and space. This has NOT been implemented.
abbreviate(names.arg, minlength = 4, use.classes = TRUE,
dot = FALSE)
names.arg |
a vector of names to be abbreviated. |
minlength |
the minimum length of the abbreviations. |
use.classes |
a flag which is ignored by R. |
dot |
a flag indicating whether to postpend a dot. |
A character vector containing abbreviations for the strings in its
first argument. Duplicates in the original names.arg will be
given identical abbreviations. If any non-duplicated elements have
the same minlength abbreviations then minlength is
incremented by one and new abbreviations are found for those elements
only. This process is repeated until all unique elements of
names.arg have unique abbreviations.
The character version of names.arg is attached to the returned
value as a names argument.
substr.
x <- c("abcd", "efgh", "abce")
abbreviate(x, 2)