问题
Is there an easy way to create an acronym from a string in MATLAB? For example:
'Superior Temporal Gyrus' => 'STG'
回答1:
If you want to put every capital letter into an abbreviation...
... you could use the function REGEXP:
str = 'Superior Temporal Gyrus'; %# Sample string
abbr = str(regexp(str,'[A-Z]')); %# Get all capital letters
... or you could use the functions UPPER and ISSPACE:
abbr = str((str == upper(str)) & ~isspace(str)); %# Compare str to its uppercase
%# version and keep elements
%# that match, ignoring
%# whitespace
... or you could instead make use of the ASCII/UNICODE values for capital letters:
abbr = str((str <= 90) & (str >= 65)); %# Get capital letters A (65) to Z (90)
If you want to put every letter that starts a word into an abbreviation...
... you could use the function REGEXP:
abbr = str(regexp(str,'\w+')); %# Get the starting letter of each word
... or you could use the functions STRTRIM, FIND, and ISSPACE:
str = strtrim(str); %# Trim leading and trailing whitespace first
abbr = str([1 find(isspace(str))+1]); %# Get the first element of str and every
%# element following whitespace
... or you could modify the above using logical indexing to avoid the call to FIND:
str = strtrim(str); %# Still have to trim whitespace
abbr = str([true isspace(str)]);
If you want to put every capital letter that starts a word into an abbreviation...
... you can use the function REGEXP:
abbr = str(regexp(str,'\<[A-Z]\w*'));
回答2:
thanks, also this:
s1(regexp(s1, '[A-Z]', 'start'))
will return abbreviation consisting of capital letters in the string. Note the string has to be in Sentence Case
来源：https://stackoverflow.com/questions/3038768/how-can-i-create-an-acronym-from-a-string-in-matlab