MATLAB: Matlab – verify if a string have any number

string

hi everyone;

I have a string and i need to verify if there are any number.

for example

str='scramble3'

and i need a answer like, True or 1(to yes) and False or 0(to no)

Thanks

Best Answer

you can use the function regexp.

example:

~isempty(regexp('scramble3','\d'))

would return a 1.

if you leave out the isempty check then it'll return 9 which is the index position of the number.

Related Solutions

MATLAB: How to check if string contains some special character

For #1 you could use isstrprop().

For #2, see startsWith(str, '_') and endsWith(str, '_')

For #3, you can use find():

indexes = strfind(str, '__');

For #4 you could do something like

if str(1) >= '0' && str(1) <= '9'
    % str starts with a numerical digit.
else
    % str does not start with a numerical digit.
end

MATLAB: How to read only vowels of a string

>> regexprep('How to read only vowels of a string?', '[^aeiouAEIOU]', '')
ans =
    'ooeaooeoai'
>> char(regexp('How to read only vowels of a string', '[aeiouAEIOU]', 'match'))'
ans =
    'ooeaooeoai'

(edit) No longer ignoring capitals!

Best Answer

Related Solutions

MATLAB: How to check if string contains some special character

MATLAB: How to read only vowels of a string

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