public static extern int DatasetCreateFromSampledColumn(IntPtr sampleValuePerColumn,
IntPtr sampleIndicesPerColumn,
int numCol,
int[] sampleNonZeroCntPerColumn,
int numSampleRow,
int numTotalRow,
[MarshalAs(UnmanagedType.LPStr)] string parameters,
out SafeDataSetHandle ret);
public static int DatasetPushRows(SafeDataSetHandle dataset,
float[] data,
int numRow,
int numCol,
int startRowIdx)
{
return(DatasetPushRows(dataset, data, CApiDType.Float32, numRow, numCol, startRowIdx));
}
private static extern int DatasetPushRowsByCsr(SafeDataSetHandle dataset,
int[] indPtr,
CApiDType indPtrType,
int[] indices,
float[] data,
CApiDType dataType,
long nIndPtr,
long numElem,
long numCol,
long startRowIdx);
public static int DatasetPushRowsByCsr(SafeDataSetHandle dataset,
int[] indPtr,
int[] indices,
float[] data,
long nIndPtr,
long numElem,
long numCol,
long startRowIdx)
{
return(DatasetPushRowsByCsr(dataset,
indPtr, CApiDType.Int32,
indices, data, CApiDType.Float32,
nIndPtr, numElem, numCol, startRowIdx));
}
private static extern int DatasetPushRows(SafeDataSetHandle dataset,
float[] data,
CApiDType dataType,
int numRow,
int numCol,
int startRowIdx);
public static extern int DatasetCreateByReference(SafeDataSetHandle reference,
long numRow,
out SafeDataSetHandle ret);
public static extern int BoosterAddValidData(SafeBoosterHandle handle, SafeDataSetHandle validset);
public static extern int BoosterCreate(SafeDataSetHandle trainset,
[MarshalAs(UnmanagedType.LPStr)] string param,
out SafeBoosterHandle res);
public static extern int DatasetGetNumFeature(SafeDataSetHandle handle, ref int res);
public static extern int DatasetSetField(
SafeDataSetHandle handle,
[MarshalAs(UnmanagedType.LPStr)] string field,
IntPtr array,
int len,
CApiDType type);