public static Problem Read(string filename)
{
FileStream fileStream = File.OpenRead(filename);
try
{
return(Problem.Read(fileStream));
}
finally
{
fileStream.Close();
}
}
private static void parseCommandLine(string[] args, out Parameter parameters, out Problem problem, out bool crossValidation, out int nrfold, out string modelFilename)
{
parameters = new Parameter();
crossValidation = false;
nrfold = 0;
int num = 0;
while (num < args.Length && args[num][0] == '-')
{
num++;
switch (args[num - 1][1])
{
case 's':
parameters.SvmType = (SvmType)int.Parse(args[num]);
break;
case 't':
parameters.KernelType = (KernelType)int.Parse(args[num]);
break;
case 'd':
parameters.Degree = int.Parse(args[num]);
break;
case 'g':
parameters.Gamma = double.Parse(args[num]);
break;
case 'r':
parameters.Coefficient0 = double.Parse(args[num]);
break;
case 'n':
parameters.Nu = double.Parse(args[num]);
break;
case 'm':
parameters.CacheSize = double.Parse(args[num]);
break;
case 'c':
parameters.C = double.Parse(args[num]);
break;
case 'e':
parameters.EPS = double.Parse(args[num]);
break;
case 'p':
parameters.P = double.Parse(args[num]);
break;
case 'h':
parameters.Shrinking = (int.Parse(args[num]) == 1);
break;
case 'b':
parameters.Probability = (int.Parse(args[num]) == 1);
break;
case 'v':
crossValidation = true;
nrfold = int.Parse(args[num]);
if (nrfold >= 2)
{
break;
}
throw new ArgumentException("n-fold cross validation: n must >= 2");
case 'w':
parameters.Weights[int.Parse(args[num - 1].Substring(2))] = double.Parse(args[1]);
break;
default:
throw new ArgumentException("Unknown Parameter");
}
num++;
}
if (num >= args.Length)
{
throw new ArgumentException("No input file specified");
}
problem = Problem.Read(args[num]);
if (parameters.Gamma == 0.0)
{
parameters.Gamma = 1.0 / (double)problem.MaxIndex;
}
if (num < args.Length - 1)
{
modelFilename = args[num + 1];
}
else
{
int startIndex = args[num].LastIndexOf('/') + 1;
modelFilename = args[num].Substring(startIndex) + ".model";
}
}