public IList <int> GetMissingValueIndices(int columnIndex)
{
int index = 0;
var indices = new List <int>();
if (MissingValueIndicies.ContainsKey(columnIndex))
{
return(MissingValueIndicies[columnIndex]);
}
if (preprocessingData.VariableHasType <double>(columnIndex))
{
foreach (var v in preprocessingData.GetValues <double>(columnIndex))
{
if (double.IsNaN(v))
{
indices.Add(index);
}
index++;
}
}
else if (preprocessingData.VariableHasType <string>(columnIndex))
{
foreach (var v in preprocessingData.GetValues <string>(columnIndex))
{
if (string.IsNullOrEmpty(v))
{
indices.Add(index);
}
index++;
}
}
else if (preprocessingData.VariableHasType <DateTime>(columnIndex))
{
foreach (var v in preprocessingData.GetValues <DateTime>(columnIndex))
{
if (DateTime.MinValue.Equals(v))
{
indices.Add(index);
}
index++;
}
}
else
{
throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
}
MissingValueIndicies[columnIndex] = indices;
return(MissingValueIndicies[columnIndex]);
}
public IList <int> GetMissingValueIndices(int columnIndex)
{
if (!MissingValueIndicies.ContainsKey(columnIndex))
{
if (preprocessingData.VariableHasType <double>(columnIndex))
{
MissingValueIndicies[columnIndex] = GetMissingValueIndices <double>(columnIndex);
}
else if (preprocessingData.VariableHasType <string>(columnIndex))
{
MissingValueIndicies[columnIndex] = GetMissingValueIndices <string>(columnIndex);
}
else if (preprocessingData.VariableHasType <DateTime>(columnIndex))
{
MissingValueIndicies[columnIndex] = GetMissingValueIndices <DateTime>(columnIndex);
}
else
{
throw new ArgumentException("column " + columnIndex + " contains a non supported type.");
}
}
return(MissingValueIndicies[columnIndex]);
}
