public void NormalizeLM(double iterNumber)
{
Spline31D spline;
double[] x;
double maxLambda, minLambda;
double[] b;
double[][] r;
double[] wm;
double[] syn;
double[] sigma;
double[][] G;
double[] data;
double[] dw;
this.polyPars = new double[this.polynomOrder + 1];
spline = new Spline31D(this.tempSpectrum[0], this.tempSpectrum[1]);
x = new double[this.obsSpectrum[0].Length];
maxLambda = this.obsSpectrum[0][this.obsSpectrum[0].Length - 1];
minLambda = this.obsSpectrum[0][0];
for (int i = 0; i < x.Length; i++)
{
x[i] = (this.obsSpectrum[0][i] - minLambda) / (maxLambda - minLambda) + 1;
}
b = new double[this.polynomOrder + 1];
r = new double[this.polynomOrder + 1][];
for (int i = 0; i < polynomOrder + 1; i++)
{
r[i] = new double[this.polynomOrder + 1];
}
wm = new double[this.obsSpectrum[0].Length];
for (int i = 0; i < wm.Length; i++)
{
wm[i] = 1.0;
}
syn = new double[this.obsSpectrum[0].Length];
for (int i = 0; i < syn.Length; i++)
{
syn[i] = spline.Interp(this.obsSpectrum[0][i]);
}
sigma = new double[this.obsSpectrum[0].Length];
for (int i = 0; i < sigma.Length; i++)
{
sigma[i] = Math.Sqrt(this.obsSpectrum[1][i]);
}
G = new double[this.obsSpectrum[0].Length][];
for (int i = 0; i < this.obsSpectrum[0].Length; i++)
{
G[i] = new double[this.polynomOrder + 1];
}
for (int i = 0; i < G.Length; i++)
{
for (int j = 0; j < G[0].Length; j++)
{
G[i][j] = Math.Pow(x[i], j) * syn[i] / sigma[i];
}
}
data = new double[this.obsSpectrum[1].Length];
for (int i = 0; i < data.Length; i++)
{
data[i] = obsSpectrum[1][i] / sigma[i];
}
dw = new double[data.Length];
for (int iter = 0; iter < iterNumber; iter++)
{
if (iter != 0)
{
Basic.MA_mult_VB_minus_VC(ref G, ref polyPars, ref data, ref wm);
for (int i = 0; i < wm.Length; i++)
{
wm[i] = 1.0 / Math.Abs(wm[i]);
}
}
for (int l = 0; l < this.polynomOrder + 1; l++)
{
double sum = 0;
for (int i = 0; i < obsSpectrum[0].Length; i++)
{
sum = sum + G[i][l] * wm[i] * data[i];
}
b[l] = sum;
}
for (int l = 0; l < this.polynomOrder + 1; l++)
{
for (int k = 0; k <= l; k++)
{
double sum = 0;
for (int i = 0; i < obsSpectrum[0].Length; i++)
{
sum = sum + wm[i] * G[i][l] * G[i][k];
}
r[l][k] = sum;
r[k][l] = sum;
}
}
this.polyPars = LES_Solver.SolveWithGaussMethod(r, b);
}
}
public void Normalize()
{
double bias = 1e30;
int sections = 20;
double[] averanges = new double[sections];
double[] biasCoeff = new double[this.obsSpectrum[0].Length];
this.polyPars = new double[this.polynomOrder + 1];
Spline31D spline = new Spline31D(this.tempSpectrum[0], this.tempSpectrum[1]);
double[] x = new double[this.obsSpectrum[0].Length];
double maxLambda = this.obsSpectrum[0][this.obsSpectrum[0].Length - 1];
double minLambda = this.obsSpectrum[0][0];
for (int i = 0; i < x.Length; i++)
{
x[i] = (this.obsSpectrum[0][i] - minLambda) / (maxLambda - minLambda);
}
double[] b = new double[this.polynomOrder + 1];
double[][] r = new double[this.polynomOrder + 1][];
for (int i = 0; i < polynomOrder + 1; i++)
{
r[i] = new double[this.polynomOrder + 1];
}
double[] syn = new double[this.obsSpectrum[0].Length];
for (int i = 0; i < syn.Length; i++)
{
syn[i] = spline.Interp(this.obsSpectrum[0][i]);
}
for (int i = 0; i < averanges.Length; i++)
{
double sum = 0;
double ave;
int size = syn.Length / averanges.Length;
for (int j = 0; j < size; j++)
{
sum += syn[j + i * size];
}
ave = sum / size;
averanges[i] = ave;
}
for (int i = 0; i < biasCoeff.Length; i++)
{
int secNum;
secNum = i / (syn.Length / averanges.Length);
if (syn[i] > averanges[secNum])
{
biasCoeff[i] = bias * (syn[i] - averanges[secNum]);
}
else
{
biasCoeff[i] = 0;
}
}
for (int l = 0; l < this.polynomOrder + 1; l++)
{
double sum = 0;
for (int i = 0; i < obsSpectrum[0].Length; i++)
{
sum = sum + syn[i] * obsSpectrum[1][i] * Math.Pow(x[i], l) * biasCoeff[i] * biasCoeff[i];
}
b[l] = sum;
}
for (int l = 0; l < this.polynomOrder + 1; l++)
{
for (int k = 0; k <= l; k++)
{
double sum = 0;
for (int i = 0; i < obsSpectrum[0].Length; i++)
{
sum = sum + Math.Pow(syn[i] * biasCoeff[i], 2) * Math.Pow(x[i], l) *
Math.Pow(x[i], k);
}
r[l][k] = sum;
r[k][l] = sum;
}
}
this.polyPars = LES_Solver.SolveWithGaussMethod(r, b);
}
private void btn_NormInterp_Click(object sender, EventArgs e)
{
if (this.tempSpectrum == null)
{
MessageBox.Show("Reference spectrum is't loaded...", "Error...");
return;
}
try
{
}
catch
{
MessageBox.Show("Error in input data format...", "Error...");
return;
}
// trimming of the template spectra;
double lambdaMin = this.obsSpectrum.LambdaSet.Min();
double lambdaMax = this.obsSpectrum.LambdaSet.Max();
int index1_cut = 0, index2_cut = 0;
for (int i = 0; i < this.tempSpectrum.Size; i++)
{
if (this.tempSpectrum.LambdaSet[i] >= lambdaMin)
{
index1_cut = i;
for (int j = i; j < this.tempSpectrum.Size; j++)
{
if (this.tempSpectrum.LambdaSet[j] >= lambdaMax)
{
index2_cut = j;
break;
}
}
break;
}
}
int size = index2_cut - index1_cut + 1;
double[] tempCuteLambda = new double[size];
double[] tempCuteFlux = new double[size];
Array.Copy(this.tempSpectrum.LambdaSet, index1_cut, tempCuteLambda, 0, size);
Array.Copy(this.tempSpectrum.FluxSet, index1_cut, tempCuteFlux, 0, size);
this.temCutSpectrum = new Spectrum(tempCuteLambda, tempCuteFlux);
// end of trimming of the template spectra;
this.cutMask.Sort();
//
double[] xx = new double[this.cutMask.Size()];
double[] yy = new double[this.cutMask.Size()];
for (int i = 0; i < xx.Length; i++)
{
double x1 = 0;
double y1 = 0;
double x0 = 0;
double y0 = 0;
int size1 = 0;
for (int j = 0; j < obsSpectrum.LambdaSet.Length; j++)
{
if (cutMask.GetLeftBound(i) <= obsSpectrum.LambdaSet[j] &&
cutMask.GetRightBound(i) >= obsSpectrum.LambdaSet[j])
{
x1 += obsSpectrum.LambdaSet[j];
y1 += obsSpectrum.FluxSet[j];
size1++;
}
}
xx[i] = x1 / size1;
yy[i] = y1 / size1;
int size0 = 0;
for (int j = 0; j < temCutSpectrum.LambdaSet.Length; j++)
{
if (cutMask.GetLeftBound(i) <= temCutSpectrum.LambdaSet[j] &&
cutMask.GetRightBound(i) >= temCutSpectrum.LambdaSet[j])
{
x0 += temCutSpectrum.LambdaSet[j];
y0 += temCutSpectrum.FluxSet[j];
size0++;
}
}
x0 = x0 / size0;
y0 = y0 / size0;
yy[i] = yy[i] / y0;
}
Spline31D spline = new Spline31D(xx, yy);
double[] contFluxes = new double[obsSpectrum.LambdaSet.Length];
double[] normFluxes = new double[obsSpectrum.LambdaSet.Length];
for (int i = 0; i < obsSpectrum.LambdaSet.Length; i++)
{
contFluxes[i] = spline.Interp(obsSpectrum.LambdaSet[i]);
normFluxes[i] = obsSpectrum.FluxSet[i] / contFluxes[i];
}
this.normSpectrum = new Spectrum(this.obsSpectrum.LambdaSet, normFluxes);
this.contSpectrum = new Spectrum(this.obsSpectrum.LambdaSet, contFluxes);
this.DrawObsSpecGraph();
this.DrawNormSpecGraph();
}
