static private void UseDotNET(Array ar, Array ai, Array br,
Array bi, ref Array cr, ref Array ci, ref Array dr, ref Array di)
{
/*
* This function calls the math_by_numbers method from
* inside a .NET assembly created with MATLAB using Builder
* for .NET.
*/
// Instantiate our .NET class from the MATLAB created component
dotnetclass AClass = new dotnetclass();
// explicity convert our input arguments into MWArrays
// this can be done with implicit conversion
MWNumericArray a = new MWNumericArray(1, 2, (double[])ar, (double[])ai);
MWNumericArray b = new MWNumericArray(1, 2, (double[])br, (double[])bi);
// call math_on_method from Assembly specifying the number
// of return arguments expected and passing in a and b
MWArray[] RetVal = AClass.math_on_numbers(2, a, b);
// Unpack return values seperating the real and imaginary parts
// using the ToArray method of MWNummericArray. Since RetVal was
// declared as a MWArray above, it must be explicity typecast here.
cr = ((MWNumericArray) RetVal[0]).ToVector(MWArrayComponent.Real);
ci = ((MWNumericArray) RetVal[0]).ToVector(MWArrayComponent.Imaginary);
dr = ((MWNumericArray) RetVal[1]).ToVector(MWArrayComponent.Real);
di = ((MWNumericArray) RetVal[1]).ToVector(MWArrayComponent.Imaginary);
}
public void train()
{
dotnetclass AClass = new dotnetclass();
int s_id = 1;
while (s_id < 6)
{
MWNumericArray subj_id = new MWNumericArray(s_id);
StreamReader sr = new StreamReader("ecg" + s_id + ".txt");
while (sr.Peek() != -1)
{
double[] ecg = new double[1280];
string line;
int i = 0;
int b = 0;
for (i = 0; i < 1280; i++)
{
if ((line = sr.ReadLine()) != null)
{
if (String.IsNullOrWhiteSpace(line))
{
b = 1;
break;
}
double line1 = Convert.ToDouble(line);
ecg[i] = line1;
}
}
if (b == 1) break;
MWNumericArray ecg_raw = new MWNumericArray(1280, 1, ecg);
MWArray RetVal = AClass.process(ecg_raw, M);
MWArray gal = new MWNumericArray();
gal = gallery;
gallery = AClass.addtogallery(gal, RetVal);
MWArray id_temp = new MWNumericArray();
id_temp = id;
id = AClass.addtoid(id_temp, subj_id);
}
if (sr != null) sr.Close();
s_id++;
}
weights = AClass.dlda(gallery, id);
projected_gallery = AClass.projection(gallery, weights);
}
