MATLAB: Extract the number within the bracket

Question

I have string a = 'a_b_c_d(1.0)'

I need to extract the number within the bracket.

my answer shoud be b = '1.0'

how can i do this using regular expression or other method?

Thank you

Answer 1

Any number of regular expression would do 'extract whatever is between two brackets:

str = 'a_b_c_d(1.0)';
regexp(str, '(?<=\()[^)]*(?=\))', 'match', 'once')

is one possibility. This

• looks ahead for an opening bracket.
• matches any number of characters as long as they're not a closing bracket
• looks behind for a closing bracket.