/// <summary>Evidence message for EP.</summary>
/// <param name="or">Incoming message from <c>or</c>.</param>
/// <param name="a">Constant value for <c>a</c>.</param>
/// <param name="b">Constant value for <c>b</c>.</param>
/// <returns>Logarithm of the factor's average value across the given argument distributions.</returns>
/// <remarks>
/// <para>The formula for the result is <c>log(sum_(or) p(or) factor(or,a,b))</c>.</para>
/// </remarks>
public static double LogAverageFactor(Bernoulli or, bool a, bool b)
{
return(or.GetLogProb(Factor.Or(a, b)));
}
/// <summary>Evidence message for EP.</summary>
/// <param name="or">Constant value for <c>or</c>.</param>
/// <param name="a">Constant value for <c>a</c>.</param>
/// <param name="b">Constant value for <c>b</c>.</param>
/// <returns>Logarithm of the factor's average value across the given argument distributions.</returns>
/// <remarks>
/// <para>The formula for the result is <c>log(factor(or,a,b))</c>.</para>
/// </remarks>
public static double LogAverageFactor(bool or, bool a, bool b)
{
return((or == Factor.Or(a, b)) ? 0.0 : Double.NegativeInfinity);
}