As you can find out from Conditional entropy calculator, conditional entropy H(Y|X) can be seen as the result of averaging H(Y|X=v) over all possible values v that X may take. So, the calculator below computes all H(Y|X=v) and all H(X|Y=v) given a joint distribution table (X, Y) ~ p, and displays them in two tables. You can find the formula below the calculator.
In order to calculate the specific conditional entropies you should enter the joint distribution matrix where the cell value for any i row and j column represents the probability of the outcome, .
Specific conditional entropy formula
Specific conditional entropy of Y for the X taking the value v is the entropy of Y among only those outcomes in which X has the value v. That is,