zero value of probability

After greeting and respect

please,anyone tell me how can I put this value not appear equal to

zero,this value must near from zero because it is compute

probability of error

P(k,1)= (error/100);

Answer 1

[Paulo Silva]

if error==0
error=eps; %or maybe another low value like 1e-5
end

P(k,1)= (error/100);

Answer 2

[Walter Roberson]

What data class is the array P, and what data class is your value "error" ?

Note by the way that error is the name of a built-in function, and using a variable of the same name is quite likely to result in problems.