/// <summary>
/// Save the dataset to a CSV file.
/// </summary>
/// <param name="targetFile">The target file.</param>
/// <param name="format">The format to use.</param>
/// <param name="set">The data set.</param>
public static void SaveCSV(FileInfo targetFile, CSVFormat format, IMLDataSet set)
{
try
{
var file = new StreamWriter(targetFile.ToString());
foreach (IMLDataPair data in set)
{
var line = new StringBuilder();
for (int i = 0; i < data.Input.Count; i++)
{
double d = data.Input[i];
BasicFile.AppendSeparator(line, format);
line.Append(format.Format(d, EncogFramework.DefaultPrecision));
}
for (int i = 0; i < data.Ideal.Count; i++)
{
double d = data.Ideal[i];
BasicFile.AppendSeparator(line, format);
line.Append(format.Format(d, EncogFramework.DefaultPrecision));
}
file.WriteLine(line);
}
file.Close();
}
catch (IOException ex)
{
throw new EncogError(ex);
}
}
/// <summary>
/// Prepare the output file, write headers if needed.
/// </summary>
///
/// <param name="outputFile">The name of the output file.</param>
/// <returns>The output stream for the text file.</returns>
private StreamWriter AnalystPrepareOutputFile(FileInfo outputFile)
{
try
{
var tw = new StreamWriter(outputFile.OpenWrite());
// write headers, if needed
if (ProduceOutputHeaders)
{
var line = new StringBuilder();
// first, handle any input fields
if (_inputCount > 0)
{
for (int i = 0; i < _inputCount; i++)
{
BasicFile.AppendSeparator(line, Format);
line.Append("\"");
line.Append("input:" + i);
line.Append("\"");
}
}
// now, handle the ideal fields
if (_idealCount > 0)
{
for (int i = 0; i < _idealCount; i++)
{
BasicFile.AppendSeparator(line, Format);
line.Append("\"");
line.Append("ideal:" + i);
line.Append("\"");
}
}
// now, handle the output fields
if (_outputCount > 0)
{
for (int i = 0; i < _outputCount; i++)
{
BasicFile.AppendSeparator(line, Format);
line.Append("\"");
line.Append("output:" + i);
line.Append("\"");
}
}
tw.WriteLine(line.ToString());
}
return(tw);
}
catch (IOException e)
{
throw new QuantError(e);
}
}
/// <summary>
/// Add headings for a raw file.
/// </summary>
///
/// <param name="line">The line to write the raw headings to.</param>
/// <param name="prefix">The prefix to place.</param>
/// <param name="format">The format to use.</param>
public void AddRawHeadings(StringBuilder line,
String prefix, CSVFormat format)
{
int subFields = ColumnsNeeded;
for (int i = 0; i < subFields; i++)
{
String str = CSVHeaders.TagColumn(_name, i,
_timeSlice, subFields > 1);
BasicFile.AppendSeparator(line, format);
line.Append('\"');
if (prefix != null)
{
line.Append(prefix);
}
line.Append(str);
line.Append('\"');
}
}
/// <summary>
/// Encode the headers used by this field.
/// </summary>
///
/// <returns>A string containing a comma separated list with the headers.</returns>
public String EncodeHeaders()
{
var line = new StringBuilder();
switch (_action)
{
case NormalizationAction.SingleField:
BasicFile.AppendSeparator(line, CSVFormat.EgFormat);
line.Append('\"');
line.Append(_name);
line.Append('\"');
break;
case NormalizationAction.Equilateral:
for (int i = 0; i < _classes.Count - 1; i++)
{
BasicFile.AppendSeparator(line, CSVFormat.EgFormat);
line.Append('\"');
line.Append(_name);
line.Append('-');
line.Append(i);
line.Append('\"');
}
break;
case NormalizationAction.OneOf:
for (int i = 0; i < _classes.Count; i++)
{
BasicFile.AppendSeparator(line, CSVFormat.EgFormat);
line.Append('\"');
line.Append(_name);
line.Append('-');
line.Append(i);
line.Append('\"');
}
break;
default:
return(null);
}
return(line.ToString());
}