/// <summary>
/// Returns model information for a predicate, given the predicate label.
/// </summary>
/// <param name="predicateLabel">
/// The predicate label to fetch information for.
/// </param>
/// <param name="featureCounts">
/// Array to be passed in to the method; it should have a length equal to the number of outcomes
/// in the model. The method increments the count of each outcome that is active in the specified
/// predicate.
/// </param>
/// <param name="outcomeSums">
/// Array to be passed in to the method; it should have a length equal to the number of outcomes
/// in the model. The method adds the parameter values for each of the active outcomes in the
/// predicate.
/// </param>
public virtual void GetPredicateData(string predicateLabel, int[] featureCounts, double[] outcomeSums)
{
if (mPredicates.ContainsKey(predicateLabel))
{
PatternedPredicate predicate = mPredicates[predicateLabel];
int[] activeOutcomes = mOutcomePatterns[predicate.OutcomePattern];
for (int currentActiveOutcome = 1; currentActiveOutcome < activeOutcomes.Length; currentActiveOutcome++)
{
int outcomeIndex = activeOutcomes[currentActiveOutcome];
featureCounts[outcomeIndex]++;
outcomeSums[outcomeIndex] += predicate.GetParameter(currentActiveOutcome - 1);
}
}
}
/// <summary>
/// Returns model information for a predicate, given the predicate label.
/// </summary>
/// <param name="predicateLabel">
/// The predicate label to fetch information for.
/// </param>
/// <param name="featureCounts">
/// Array to be passed in to the method; it should have a length equal to the number of outcomes
/// in the model. The method increments the count of each outcome that is active in the specified
/// predicate.
/// </param>
/// <param name="outcomeSums">
/// Array to be passed in to the method; it should have a length equal to the number of outcomes
/// in the model. The method adds the parameter values for each of the active outcomes in the
/// predicate.
/// </param>
public virtual void GetPredicateData(string predicateLabel, int[] featureCounts, double[] outcomeSums)
{
try
{
if (predicateLabel != null && _predicates.ContainsKey(predicateLabel))
{
PatternedPredicate predicate = _predicates[predicateLabel];
int[] activeOutcomes = _outcomePatterns[predicate.OutcomePattern];
for (int currentActiveOutcome = 1; currentActiveOutcome < activeOutcomes.Length; currentActiveOutcome++)
{
int outcomeIndex = activeOutcomes[currentActiveOutcome];
featureCounts[outcomeIndex]++;
outcomeSums[outcomeIndex] += predicate.GetParameter(currentActiveOutcome - 1);
}
}
}
catch (ArgumentNullException ex)
{
throw new ArgumentException(string.Format("Try to find key '{0}' in predicates dictionary ({1} entries)", predicateLabel, _predicates.Count), ex);
}
}
