public static Dictionary<VariableDesc, Dictionary<int, int>> GetIntData(Dictionary<VariableDesc, ValueDescs> oData,
MatriceComputeMode mode, int nClasses)
{
Dictionary<VariableDesc, Dictionary<int, int>> oRet = new Dictionary<VariableDesc, Dictionary<int, int>>();
var keys = oData.Keys;
foreach (var key in keys)
{
oRet[key] = new Dictionary<int, int>();
var rdict = oRet[key];
var vals = (oData[key]).ToArray();
int n = vals.Length;
int[] ddata = new int[n];
if (key.IsNumVar)
{
double[] data = new double[n];
for (int i = 0; i < n; ++i)
{
var v = vals[i];
double vv = v.DoubleValue;
data[i] = vv;
}// i
if (mode == MatriceComputeMode.modeNormalize)
{
DescriptiveStatistics st = new DescriptiveStatistics(data);
double ec = st.StandardDeviation;
if (ec <= 0.0)
{
return null;
}
double mean = st.Mean;
for (int i = 0; i < n; ++i)
{
data[i] = (data[i] - mean) / ec;
}// i
}
else if (mode == MatriceComputeMode.modeProfil)
{
DescriptiveStatistics st = new DescriptiveStatistics(data);
double vmin = st.Minimum;
double vmax = st.Maximum;
if (vmax <= vmin)
{
return null;
}
double rg = vmax - vmin;
for (int i = 0; i < n; ++i)
{
data[i] = (data[i] - vmin) / rg;
}
}
else if (mode == MatriceComputeMode.modeRank)
{
double[] dz = BertinPartition.GetRanks(data);
if (dz == null)
{
return null;
}
for (int i = 0; i < n; ++i)
{
data[i] = dz[i];
}
}
var pc = BertinPartition.GetPartition(data, nClasses);
if (pc == null)
{
return null;
}
var cc = pc.Classes;
for (int i = 0; i < n; ++i)
{
var v = vals[i];
int ind = v.Index;
rdict[ind] = cc[i];
}// i
}
else
{
String[] data = new String[n];
for (int i = 0; i < n; ++i)
{
var v = vals[i];
data[i] = v.StringValue;
}// i
var p = BertinPartition.GetPartition(data);
if (p == null)
{
return null;
}
var cc = p.Classes;
for (int i = 0; i < n; ++i)
{
var v = vals[i];
int ind = v.Index;
rdict[ind] = cc[i];
}// i
}
}// key
return oRet;
}
public IEnumerable<IndivData> GetIndivsData(IEnumerable<IndivDesc> inds, IEnumerable<VariableDesc> oVars, MatriceComputeMode mode,
int nClasses)
{
List<IndivData> oRet = null;
try
{
var vars = oVars.ToArray();
int nv = vars.Length;
if (nv < 1)
{
return null;
}
var vals = GetCommonValues(oVars);
if (vals == null)
{
return null;
}
var dictDouble = GetDoubleData(vals, mode);
var dictInt = GetIntData(vals, mode, nClasses);
if ((dictDouble == null) || (dictInt == null))
{
return null;
}
oRet = new List<IndivData>();
foreach (var ind in inds)
{
int index = ind.IndivIndex;
if (index < 0)
{
continue;
}
double[] dd = new double[nv];
int[] di = new int[nv];
for (int j = 0; j < nv; ++j)
{
var vv = vars[j];
foreach (var x in dictDouble.Keys)
{
if (x.Id == vv.Id)
{
var dict = dictDouble[x];
if (dict.ContainsKey(index))
{
dd[j] = dict[index];
}
break;
}//
}// double
foreach (var x in dictInt.Keys)
{
if (x.Id == vv.Id)
{
var dict = dictInt[x];
if (dict.ContainsKey(index))
{
di[j] = dict[index];
}
break;
}//
}// double
}// j
var vz = new IndivData(ind, dd, di);
oRet.Add(vz);
}// inds
}// try
catch (Exception /*ex */)
{
oRet = null;
}
return oRet;
}
