if statement - working with characters

I am executing the following code:

x = inputdlg({'Month', 'Population renewal', 'Death rate'}, 'Inputs')

f = getfield(x,{1});

if (f == 'January')

b = 0.5

else

 b = 0.7

end

and I am getting an error that says "??? Undefined function or method 'eq' for input arguments of type 'cell'"

Please do tell me where I am going wrong....

Answer 1

[Azzi Abdelmalek]

Use

 if isequal(f{1} ,'january')

[Azzi Abdelmalek]

[ Ojaswita commented]

Thanks alot for the answer... can you pls explain the logic too so that I can always have it in mind for next time... :)

And also what if I want to say that if f is january, february or march?

[Azzi Abdelmalek]

f={'january'}  % is a cell array
f{1} % is char
'jenuery'==f{1}   % the result is the comparison of each character,
isequal('january',f{1}) will compare the two words, the result is 0 or 1
%for you last question
ismember(f,{'janury','march'})

[Ojaswita]

Thank you very very much! I understand it well and it works! :) :)

[Jan]

For the comparison of strings, I'd prefer strcmp. This would even accept a cell string as input:

if strcmp(f, 'January')

Or

if strcmp(f{1}, 'January')

[Ojaswita]

It works equally well with strcmp... I tried strcmp before too but i didnt know how to insert my 'or' requirement. As in if f = january/february/march etc etc...

[Azzi Abdelmalek]

any(strcmp(f,{'janury','march'}))

[Gwangil Mun]

good