public override void InitialiseFeatures(
DatasetName datasetName,
object[,] x,
object[] y)
{
Debug.Assert(x != null, "The feature vector must not be null.");
Debug.Assert(y != null, "The targe variable must not be null.");
Vector[] xV = null;
Range r = null;
// Validate
_validate.Dataset(
labels: _mapping.GetClassLabels().ToArray(),
datasetName: datasetName,
x: x,
y: y);
// Set meta data
_numFeatures = x.GetLength(0);
_numObservations = x.GetLength(1);
// Transpose
double[][] xTrans = new double[_numObservations][];
for (int j = 0; j < _numObservations; j++)
{
xTrans[j] = new double[_numFeatures];
for (int i = 0; i < _numFeatures; i++)
{
xTrans[j][i] = (double)x[i, j];
}
}
// Set target
_y = Variable.Observed(
Array.ConvertAll(y, v => (
System.Convert.ToInt64(v) > 0) ? true : false)).Named(
"y." + datasetName.ToString());
// Set features
xV = new Vector[_numObservations];
r = _y.Range.Named("person");
for (int i = 0; i < _numObservations; i++)
{
xV[i] = Vector.FromArray(xTrans[i]);
}
_x = Variable.Observed(xV, r).Named("x." + datasetName.ToString());
_availableDatasetName = datasetName;
}
public override void InitialiseFeatures(
DatasetName datasetName,
object[,] x,
object[] y)
{
Debug.Assert(x != null, "The feature vector must not be null.");
Debug.Assert(y != null, "The targe variable must not be null.");
// Validate
_validate.Dataset(
labels: _mapping.GetClassLabels().ToArray(),
datasetName: datasetName,
x: x,
y: y);
// Set meta data
_numFeatures = x.GetLength(0);
_numObservations = x.GetLength(1);
// Transpose
double[][] xTrans = new double[_numObservations][];
for (int j = 0; j < _numObservations; j++)
{
xTrans[j] = new double[_numFeatures];
for (int i = 0; i < _numFeatures; i++)
{
xTrans[j][i] = (double)x[i, j];
}
}
// Set target
_y = new List <string>(
Array.ConvertAll(y, v => v.ToString()));
// Set features
_x = new Vector[_numObservations];
for (int i = 0; i < _numObservations; i++)
{
_x[i] = Vector.FromArray(xTrans[i]);
}
_availableDatasetName = datasetName;
}