public object ComputeMeanValue(ArrayList stats, string featureName)
{
double sum = 0;
double totalSimilarity = 0;
for (int i = 0; i < stats.Count; i++)
{
IStat s = (IStat)stats[i];
Case c = s.GetCBRCase();
if (c != null)
{
Feature f = c.GetFeature(featureName);
if (f != null)
{
if (f.GetFeatureType()
== FeatureType.TYPE_FEATURE_FLOAT)
{
sum += (double)f.GetFeatureValue() * s.GetCaseSimilarity();
totalSimilarity += s.GetCaseSimilarity();
}
else if (f.GetFeatureType()
== FeatureType.TYPE_FEATURE_INT)
{
sum += (int)f.GetFeatureValue() * s.GetCaseSimilarity();
totalSimilarity += s.GetCaseSimilarity();
}
else
{
throw new Exception("ComputeMeanValue method exception:unsupported type");
}
}
}
}
if (totalSimilarity == 0)
{
throw new Exception("ComputeMeanValue method exception");
}
return(sum / totalSimilarity);
}