How to convert NaN value to 'zero' ?

Hi Everybody,

I have an equation like this "Enthropy = (-p2/b)*log2(p2/b)". p2 values changing according to another equation and When p2 value gets '0', Enthropy value gets to NaN. is there any way to Conver this NaN to '0' value?

For example

when : p2/b = 4

Enthropy = -4*log2(4) = -8

when : p2/b = 0

Enthropy = -0*log2(0) = 0

Answer 1

[darova]

Use isnan

Enthropy(isnan(Enthropy)) = 0;

[Ararat Cetinkaya]

when Enthropy value gets different then something zero like 0.256, 0.985 etc. will it store as numeric ?

[darova]

I don't understand

[Image Analyst]

Yes, of course. Why would it not be?