public static void Convert(string inputArffFile, string outputFile)
{
int lineCount = 0;
using (ArffReader reader = new ArffReader(inputArffFile))
{
using (var writer = new BinaryWriter(File.Open(outputFile, FileMode.Create)))
{
var maxAttributeValueCount = reader.Attributes.Max(a => a.NominalValues.Count);
Console.WriteLine("Max attribute value count: " + maxAttributeValueCount);
if (maxAttributeValueCount > byte.MaxValue)
{
throw new ArgumentOutOfRangeException("maxAttributeValueCount", "One attribute has more than " + byte.MaxValue + " possible values.");
}
writer.Write(reader.Attributes.Count);
ArffRecord record;
while ((record = reader.ReadNextRecord()) != null)
{
var values = record.Values;
for (int i = 0; i < values.Length; i++)
{
writer.Write((byte)values[i].NominalValueIndex);
}
++lineCount;
if (lineCount % 1000 == 0 && lineCount > 0) Console.Write(lineCount + " ");
}
}
}
Console.WriteLine();
Console.WriteLine("Total records: " + lineCount);
}
public static void Convert(string inputArffFile, string outputFile)
{
int lineCount = 0;
using (ArffReader reader = new ArffReader(inputArffFile))
{
using (var writer = new BinaryWriter(File.Open(outputFile, FileMode.Create)))
{
var maxAttributeValueCount = reader.Attributes.Max(a => a.NominalValues.Count);
Console.WriteLine("Max attribute value count: " + maxAttributeValueCount);
if (maxAttributeValueCount > byte.MaxValue)
{
throw new ArgumentOutOfRangeException("maxAttributeValueCount", "One attribute has more than " + byte.MaxValue + " possible values.");
}
writer.Write(reader.Attributes.Count);
ArffRecord record;
while ((record = reader.ReadNextRecord()) != null)
{
var values = record.Values;
for (int i = 0; i < values.Length; i++)
{
writer.Write((byte)values[i].NominalValueIndex);
}
++lineCount;
if (lineCount % 1000 == 0 && lineCount > 0)
{
Console.Write(lineCount + " ");
}
}
}
}
Console.WriteLine();
Console.WriteLine("Total records: " + lineCount);
}
