public bool TryLoad()
{
try
{
this.filestream = new FileStream(this.SourceFilePath, FileMode.Open);
weka.core.converters.ArffLoader loader = new weka.core.converters.ArffLoader();
loader.set_FilePath(SourceFilePath);
Instances instances = loader.getDataSet();
return true;
}
catch (Exception _ex)
{
return false;
}
finally
{
filestream.Close();
}
}
public bool TryLoad()
{
try
{
this.filestream = new FileStream(this.SourceFilePath, FileMode.Open);
weka.core.converters.ArffLoader loader = new weka.core.converters.ArffLoader();
loader.set_FilePath(SourceFilePath);
Instances instances = loader.getDataSet();
return(true);
}
catch (Exception _ex)
{
return(false);
}
finally
{
filestream.Close();
}
}
public Set Load()
{
Set set = null;
try
{
this.filestream = new FileStream(this.SourceFilePath, FileMode.Open);
weka.core.converters.ArffLoader loader = new weka.core.converters.ArffLoader();
loader.set_FilePath(SourceFilePath);
Instances instances = loader.getDataSet();
AttributeStats _ast = instances.attributeStats(0);
List<Attribute> attributes = new List<Attribute>();
Attribute attrToAdd = null;
//Obtener los atributos de la coleccion de elementos
for (int i = 0; i < instances.numAttributes(); i++)
{
attrToAdd = null;
if (instances.attribute(i).isNominal())
{
List<object> l = new List<object>();
for (int j = 0; j < instances.attribute(i).numValues(); j++)
l.Add(instances.attribute(i).value(j));
attrToAdd = new Attribute(instances.attribute(i).name(), l);
attrToAdd.AttributeType = AttributeType.Nominal;
attributes.Add(attrToAdd);
}
else if (instances.attribute(i).isNumeric())
{
attrToAdd = new Attribute(instances.attribute(i).name(), null);
attrToAdd.AttributeType = AttributeType.Numeric;
attributes.Add(attrToAdd);
}
else if (instances.attribute(i).isString())
{
attrToAdd = new Attribute(instances.attribute(i).name(), null);
attrToAdd.AttributeType = AttributeType.String;
attributes.Add(attrToAdd);
}
else if (instances.attribute(i).isDate())
{
attrToAdd = new Attribute(instances.attribute(i).name(), null);
attrToAdd.AttributeType = AttributeType.Date;
attributes.Add(attrToAdd);
}
}
Attributes attributes_values = new Attributes(attributes);
List<Element> elements = new List<Element>();
//Darle los valores a cada elemento de la coleccion
for (int i = 0; i < instances.numInstances(); i++)
{
List<object> realvalues = new List<object>();
for (int j = 0; j < instances.instance(i).numAttributes(); j++)
{
if (instances.instance(i).isMissing(j))
realvalues.Add(null);
else if (instances.attribute(j).isNumeric())
realvalues.Add(instances.instance(i).value(j));
else if (instances.attribute(j).isNominal() || instances.attribute(j).isString())
realvalues.Add(instances.instance(i).stringValue(j));
else if (instances.attribute(j).isDate())
realvalues.Add(DateTime.Parse(instances.instance(i).stringValue(j)));
}
Element e = new Element(realvalues);
e.Name = "E-" + i;
e.Index = i;
elements.Add(e);
}
set = new Set(instances.relationName(), elements, attributes_values);
//Attributes[i].Missing = _missing;
//Attributes[i].MissingPercent = 100 * _missing / ElementsCount;
//Attributes[i].Distinct = _distinct;
//Attributes[i].Unique = _unique;
//Attributes[i].UniquePercent = 100 * _unique / ElementsCount;
for (int i = 0; i < instances.numAttributes(); i++)
{
set.Attributes[i].Missing = instances.attributeStats(i).missingCount;
set.Attributes[i].MissingPercent = 100 * set.Attributes[i].Missing / elements.Count;
set.Attributes[i].Distinct = instances.attributeStats(i).distinctCount;
set.Attributes[i].Unique = instances.attributeStats(i).uniqueCount;
set.Attributes[i].UniquePercent = 100*set.Attributes[i].Unique/elements.Count;
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
filestream.Close();
}
return set;
}
public Set Load()
{
Set set = null;
try
{
this.filestream = new FileStream(this.SourceFilePath, FileMode.Open);
weka.core.converters.ArffLoader loader = new weka.core.converters.ArffLoader();
loader.set_FilePath(SourceFilePath);
Instances instances = loader.getDataSet();
AttributeStats _ast = instances.attributeStats(0);
List <Attribute> attributes = new List <Attribute>();
Attribute attrToAdd = null;
//Obtener los atributos de la coleccion de elementos
for (int i = 0; i < instances.numAttributes(); i++)
{
attrToAdd = null;
if (instances.attribute(i).isNominal())
{
List <object> l = new List <object>();
for (int j = 0; j < instances.attribute(i).numValues(); j++)
{
l.Add(instances.attribute(i).value(j));
}
attrToAdd = new Attribute(instances.attribute(i).name(), l);
attrToAdd.AttributeType = AttributeType.Nominal;
attributes.Add(attrToAdd);
}
else if (instances.attribute(i).isNumeric())
{
attrToAdd = new Attribute(instances.attribute(i).name(), null);
attrToAdd.AttributeType = AttributeType.Numeric;
attributes.Add(attrToAdd);
}
else if (instances.attribute(i).isString())
{
attrToAdd = new Attribute(instances.attribute(i).name(), null);
attrToAdd.AttributeType = AttributeType.String;
attributes.Add(attrToAdd);
}
else if (instances.attribute(i).isDate())
{
attrToAdd = new Attribute(instances.attribute(i).name(), null);
attrToAdd.AttributeType = AttributeType.Date;
attributes.Add(attrToAdd);
}
}
Attributes attributes_values = new Attributes(attributes);
List <Element> elements = new List <Element>();
//Darle los valores a cada elemento de la coleccion
for (int i = 0; i < instances.numInstances(); i++)
{
List <object> realvalues = new List <object>();
for (int j = 0; j < instances.instance(i).numAttributes(); j++)
{
if (instances.instance(i).isMissing(j))
{
realvalues.Add(null);
}
else if (instances.attribute(j).isNumeric())
{
realvalues.Add(instances.instance(i).value(j));
}
else if (instances.attribute(j).isNominal() || instances.attribute(j).isString())
{
realvalues.Add(instances.instance(i).stringValue(j));
}
else if (instances.attribute(j).isDate())
{
realvalues.Add(DateTime.Parse(instances.instance(i).stringValue(j)));
}
}
Element e = new Element(realvalues);
e.Name = "E-" + i;
e.Index = i;
elements.Add(e);
}
set = new Set(instances.relationName(), elements, attributes_values);
//Attributes[i].Missing = _missing;
//Attributes[i].MissingPercent = 100 * _missing / ElementsCount;
//Attributes[i].Distinct = _distinct;
//Attributes[i].Unique = _unique;
//Attributes[i].UniquePercent = 100 * _unique / ElementsCount;
for (int i = 0; i < instances.numAttributes(); i++)
{
set.Attributes[i].Missing = instances.attributeStats(i).missingCount;
set.Attributes[i].MissingPercent = 100 * set.Attributes[i].Missing / elements.Count;
set.Attributes[i].Distinct = instances.attributeStats(i).distinctCount;
set.Attributes[i].Unique = instances.attributeStats(i).uniqueCount;
set.Attributes[i].UniquePercent = 100 * set.Attributes[i].Unique / elements.Count;
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
filestream.Close();
}
return(set);
}
