public static IrisDataItem FromCommaSeparatedString(string data)
{
var parts = data.Split(',');
if (parts.Length != FieldsCount)
{
throw new InvalidOperationException();
}
var result = new IrisDataItem();
if (double.TryParse(parts[SepalLengthIndex].Replace('.', ','), out double value))
{
result.SepalLength = value;
}
if (double.TryParse(parts[SepalWidthIndex].Replace('.', ','), out value))
{
result.SepalWidth = value;
}
if (double.TryParse(parts[PetalLengthIndex].Replace('.', ','), out value))
{
result.PetalLength = value;
}
if (double.TryParse(parts[PetalWidthIndex].Replace('.', ','), out value))
{
result.PetalWidth = value;
}
result.ClassName = parts[ClassNameIndex];
return(result);
}
public IrisDataReader(string fileName)
{
using (var input = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (var reader = new StreamReader(input))
{
cache = new Dictionary <int, IrisDataItem>();
int index = 0;
while (!reader.EndOfStream)
{
var data = reader.ReadLine();
if (!string.IsNullOrWhiteSpace(data))
{
cache.Add(index++, IrisDataItem.FromCommaSeparatedString(data));
}
}
}
}
