private static Data.Example ParseExampleLine(int exampleIndex, string line, Data.Dataset dataset)
{
string[] parts = line.Split(',');
List<double> values = new List<double>();
int label = dataset.Metadata.Target.GetIndex(parts[parts.Length - 1]);
for (int index = 0; index < parts.Length - 1; index++)
{
if (dataset.Metadata.Attributes[index] is Data.NominalAttribute)
{
Data.NominalAttribute attribute = dataset.Metadata.Attributes[index] as Data.NominalAttribute;
string value = parts[index];
values.Add(attribute.GetIndex(value));
}
else
{
double value = double.NaN;
if (parts[index] != "?")
value = double.Parse(parts[index]);
values.Add(value);
}
}
Data.Example example = new Data.Example(dataset.Metadata, exampleIndex, values.ToArray(), label);
return example;
}
private static Data.Instance ParseHierarchicalinstanceLine(int instanceIndex, string line, Data.Dataset dataset, bool skipFirstAttribute)
{
string[] parts = line.Split(',');
List <double> values = new List <double>();
List <int> label = new List <int>();
string[] labelParts = parts[parts.Length - 1].Split(';');
foreach (string target in labelParts)
{
if (!string.IsNullOrWhiteSpace(target))
{
label.Add(dataset.Metadata.Target.GetIndex(target));
}
}
for (int index = 0; index < parts.Length - 1; index++)
{
if (dataset.Metadata.Attributes[index] is Data.NominalAttribute)
{
Data.NominalAttribute attribute = dataset.Metadata.Attributes[index] as Data.NominalAttribute;
string value = parts[index];
values.Add(attribute.GetIndex(value));
}
else
{
double value = double.NaN;
if (parts[index] != "?")
{
value = double.Parse(parts[index]);
}
values.Add(value);
}
}
Data.Instance instance = new Data.Instance(dataset.Metadata, instanceIndex, values.ToArray(), label);
return(instance);
}