private void buildModelrst()
{
n = 0;
IRaster2 rsV2 = (IRaster2)InValueRaster;
IRaster2 rsS2 = (IRaster2)InStrataRaster;
IRasterBandCollection rsbc = (IRasterBandCollection)rsV2;
IRasterCursor rsSCur = rsS2.CreateCursorEx(null);
IPixelBlock pbS = null;
double[] vlBandArr = new double[rsbc.Count];
Dictionary <string, int> stratDic = new Dictionary <string, int>();
double[] sumClms = null;
double[,] sumCross = null;
double[,] cov = null;
double[,] scov = null;
//System.Array[] pbVArrs = new System.Array[rsbc.Count];
do
{
pbS = rsSCur.PixelBlock;
IPnt pbSize = new PntClass();
pbSize.SetCoords(pbS.Width, pbS.Height);
IPixelBlock pb = InValueRaster.CreatePixelBlock(pbSize);
IPnt ptLoc = new PntClass();
double mx, my;
rsS2.PixelToMap(System.Convert.ToInt32(rsSCur.TopLeft.X), System.Convert.ToInt32(rsSCur.TopLeft.Y), out mx, out my);
int px, py;
rsV2.MapToPixel(mx, my, out px, out py);
ptLoc.SetCoords(px, py);
InValueRaster.Read(ptLoc, pb);
for (int r = 0; r < pb.Height; r++)
{
for (int c = 0; c < pb.Width; c++)
{
object sobj = pbS.GetVal(0, c, r);
if (sobj == null)
{
continue;
}
bool chVl = true;
for (int p = 0; p < pb.Planes; p++)
{
object vlobj = pb.GetVal(p, c, r);
if (vlobj == null)
{
chVl = false;
break;
}
vlBandArr[p] = System.Convert.ToDouble(vlobj);
}
if (chVl)
{
string strataValue = sobj.ToString();
int sCnt;
if (stratDic.TryGetValue(strataValue, out sCnt))
{
stratDic[strataValue] = sCnt + 1;
int lIndex = lbl.IndexOf(strataValue);
sumClms = sumClmsLst[lIndex];
sumCross = sumCrossLst[lIndex];
}
else
{
stratDic.Add(strataValue, 1);
int lIndex = lbl.Count;
lbl.Add(strataValue);
sumClms = new double[VariableFieldNames.Length];
sumCross = new double[VariableFieldNames.Length, VariableFieldNames.Length];
cov = new double[VariableFieldNames.Length, VariableFieldNames.Length];
scov = new double[VariableFieldNames.Length, VariableFieldNames.Length];
sumClmsLst.Add(sumClms);
sumCrossLst.Add(sumCross);
covLst.Add(cov);
scovLst.Add(scov);
}
for (int v = 0; v < vlBandArr.Length; v++)
{
sumClms[v] += vlBandArr[v];
sumCross[v, v] += Math.Pow(vlBandArr[v], 2);
for (int j = 0 + v + 1; j < vlBandArr.Length; j++)
{
double vl1 = vlBandArr[v];
double vl2 = vlBandArr[j];
double p12 = vl1 * vl2;
sumCross[v, j] += p12;
sumCross[j, v] += p12;
}
}
n++;
}
}
}
} while (rsSCur.Next() == true);
for (int l = 0; l < lbl.Count; l++)
{
string lblVl = lbl[l];
int sampN = stratDic[lblVl];
double r = sampN / (sampN - 1);
proportionsLst.Add(System.Convert.ToDouble(sampN) / n);
sumClms = sumClmsLst[l];
meansLst.Add((from double d in sumClms select d / sampN).ToArray());
sumCross = sumCrossLst[l];
cov = covLst[l];
scov = scovLst[l];
for (int i = 0; i < sumClms.Length; i++)
{
double var = (sumCross[i, i] / sampN) - (Math.Pow(sumClms[i], 2) / Math.Pow((sampN), 2));
cov[i, i] = var;
scov[i, i] = var * r;
for (int j = 0 + i + 1; j < sumClms.Length; j++)
{
double vl1 = (sumCross[j, i] / sampN);
double vl2 = (sumClms[j] / sampN) * (sumClms[i] / (sampN));
double p12 = vl1 - vl2;
cov[i, j] = p12;
cov[j, i] = p12;
scov[i, j] = p12 * r;
scov[j, i] = p12 * r;
}
}
}
k = lbl.Count;
makeKMeans();
}
private void buildModelRst()
{
sumX.Clear();
sumX2.Clear();
cateDic.Clear();
lbl.Clear();
int v1 = VariableFieldNames.Length;
double[] s = new double[(v1 * v1 - v1) / 2];
double[] s2 = new double[s.Length];
n = 0;
IRasterCursor rsCur = ((IRaster2)InStrataRaster).CreateCursorEx(null);
IPnt vCurSize = new PntClass();
do
{
IPixelBlock pbS = rsCur.PixelBlock;
vCurSize.SetCoords(pbS.Width, pbS.Height);
IPixelBlock pbV = InValueRaster.CreatePixelBlock(vCurSize);
InValueRaster.Read(rsCur.TopLeft, pbV);
for (int r = 0; r < pbS.Height; r++)
{
for (int c = 0; c < pbS.Width; c++)
{
object strata = pbS.GetVal(0, c, r);
if (strata == null)
{
continue;
}
else
{
string strataStr = strata.ToString();
int strataIndex;
int cnt;
if (cateDic.TryGetValue(strataStr, out cnt))
{
cnt = cnt + 1;
strataIndex = lbl.IndexOf(strataStr);
s = sumX[strataIndex];
s2 = sumX2[strataIndex];
}
else
{
cnt = 1;
cateDic.Add(strataStr, 0);
lbl.Add(strataStr);
strataIndex = lbl.Count - 1;
s = new double[s.Length];
s2 = new double[s.Length];
sumX.Add(s);
sumX2.Add(s2);
}
bool checkVl = true;
double[] vlArr = new double[pbV.Planes];
for (int p = 0; p < pbV.Planes; p++)
{
object vl = pbV.GetVal(p, c, r);
if (vl == null)
{
checkVl = false;
break;
}
else
{
vlArr[p] = System.Convert.ToDouble(vl);
}
}
if (checkVl)
{
int vlCnter = 1;
int sCnter = 0;
for (int i = 0; i < vlArr.Length - 1; i++)
{
for (int k = vlCnter; k < vlArr.Length; k++)
{
double m = vlArr[i] - vlArr[k];
double m2 = m * m;
s[sCnter] = s[sCnter] + m;
s2[sCnter] = s2[sCnter] + m2;
sCnter += 1;
}
vlCnter += 1;
}
cateDic[strataStr] = cnt;
n += 1;
}
}
}
}
} while (rsCur.Next() == true);
}