private void AssertWriter(string expectedOutput, Action <ArffWriter> action)
{
using (MemoryStream memoryStream = new MemoryStream())
using (ArffWriter arffWriter = new ArffWriter(memoryStream))
{
action(arffWriter);
arffWriter.Flush();
memoryStream.Seek(0, SeekOrigin.Begin);
using (StreamReader streamReader = new StreamReader(memoryStream, new UTF8Encoding(false), true, 4096, true))
Assert.AreEqual(expectedOutput, streamReader.ReadToEnd());
}
}
private void WriteArffFile(string[] allfiles)
{
using (ArffWriter arffWriter = new ArffWriter(textBox3.Text + ".arff"))
{
bool relation = true;
object[] inst = null;
object[][] insts = new object[allfiles.Length][];
int n = 0;
foreach (string file in allfiles)
{
FileInfo fi = new FileInfo(file);
ArffReader datafile = new ArffReader(file);
ArffHeader header = datafile.ReadHeader();
var instances = datafile.ReadAllInstances();
//var instance = datafile.ReadInstance();
object[] instance = null;
foreach (var ins in instances)
{
instance = ins;
}
if (header != null)
{
var attributes = header.Attributes;
string line;
StreamReader attrfile = new StreamReader("attributes.txt");
int i = 0;
int j = 0;
while ((line = attrfile.ReadLine()) != null)
{
foreach (var attribute in attributes)
{
if (attribute.Name == line)
{
if (relation == true)
{
arffWriter.WriteRelationName(header.RelationName);
relation = false;
}
arffWriter.WriteAttribute(new ArffAttribute(attribute.Name, attribute.Type));
j++;
}
i++;
}
}
inst = new object[j];
j = 0;
i = 0;
while ((line = attrfile.ReadLine()) != null)
{
foreach (var attribute in attributes)
{
if (attribute.Name == line)
{
inst.SetValue(instance.GetValue(i), j);
j++;
}
i++;
}
}
insts.SetValue(inst, n);
attrfile.Close();
}
datafile.Dispose();
n++;
progress++;
}
foreach (var ins in insts)
{
arffWriter.WriteInstance(new object[] { ins });
}
}
}
