how to solve 'Too many input arguments' error?

I am writing a code in which i am getting an error on line 119 which is... y=log(max(m*abs(f(a:b,:))),ath);

I am getting an error saying.. Error using log Too many input arguments. I have attached the .m file below

Answer 1

[Adam Danz]

help log
log(X) is the natural logarithm of the elements of X.
  Complex results are produced if X is not positive.

You'll see that log() has one input. You are shoving in two inputs:

• max(m*abs(f(a:b,:)))
• ath

You must remove one.

[Fangjun Jiang]

Probably it should be y=log(max(m*abs(f(a:b,:)),ath))

[mohanish]

thanks! It worked!