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
| logical (currently ignored by R). |
dot
|
logical; should a dot ("." ) be appended?
|
minlength
characters,
such that they remain unique (if they were).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 separated 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.
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) data(state) (st.abb <- abbreviate(state.name, 2)) table(nchar(st.abb))# out of 50, 3 need 4 letters x <- c("abcd", "efgh", "abce") abbreviate(x, 2) data(state) (st.abb <- abbreviate(state.name, 2)) table(nchar(st.abb))# out of 50, 3 need 4 letters