How to compare strings in a cell

I have a cell R={Transport.name}; which is 1*20 cell

I want to check my input string( from the user) will exist in R or not? Can anyone please help me? Thanks

Answer 1

[per isakson]

Try this

%%Sample data
str = char(randi(double(['A','Z']),[20,3] ));  % Too smart
cac = mat2cell( str, ones(1,20),3 );
R   = cac';
input_string = R{13};
%%Check if input_string exists in R 
ismember( input_string, R )

returns

ans =
     1