/// <summary>
/// Returns an <see cref="IAlternative{TSource}"/> containing <see cref="Maybe.Just{T}(T)"/> its value, if present, or <see cref="Maybe.Nothing{T}"/> otherwise.
/// </summary>
/// <typeparam name="TResult">The type of the value in <paramref name="alt"/>.</typeparam>
/// <param name="alt">The <see cref="IAlternative{TSource}"/> to check.</param>
public static IAlternative <Maybe <TResult> > Optional <TResult>(this IAlternative <TResult> alt)
{
var altM = (IAlternative <Maybe <TResult> >)alt.Map(x => Maybe.Just(x));
var nothingM = (IAlternative <Maybe <TResult> >)Applicative.PureUnsafe(Maybe.Nothing <TResult>(), altM.GetType());
return(altM.Alt(nothingM));
}
public static DataBase.Alternative ConvertToDBAlternative(IAlternative alternativeModel)
{
return(new DataBase.Alternative
{
Name = alternativeModel.Name,
Description = alternativeModel.Description
});
}
private void WL(int trial, IAlternative alternative)
{
if (this._bandit.Diagnostics.LastBest == null)
{
Console.WriteLine(
string.Format("{0}\t{1}",trial, ((ConstantRewardAlternative)alternative).Name)
);
}
else
{
Console.WriteLine(
string.Format("{0}\t{1}\tBest {2} {3}\tWorst {4} {5}",
trial, ((ConstantRewardAlternative)alternative).Name,
((ConstantRewardAlternative)this._bandit.Diagnostics.LastBest).Name, Math.Round(this._bandit.Diagnostics.LastBestMean, 4),
((ConstantRewardAlternative)this._bandit.Diagnostics.LastWorst).Name, Math.Round(this._bandit.Diagnostics.LastWorstMean, 4))
);
}
}
