/// <summary>
/// Selects an optimal combination of features to classify the provided data.
/// Instance represents: Handle of the training data.
/// </summary>
/// <param name="selectionMethod">Method to perform the selection. Default: "greedy"</param>
/// <param name="genParamName">Names of generic parameters to configure the selection process and the classifier. Default: []</param>
/// <param name="genParamValue">Values of generic parameters to configure the selection process and the classifier. Default: []</param>
/// <param name="selectedFeatureIndices">The selected feature set, contains indices.</param>
/// <param name="score">The achieved score using two-fold cross-validation.</param>
/// <returns>A trained SVM classifier using only the selected features.</returns>
public HClassSvm SelectFeatureSetSvm(
string selectionMethod,
string genParamName,
double genParamValue,
out HTuple selectedFeatureIndices,
out HTuple score)
{
IntPtr proc = HalconAPI.PreCall(1800);
this.Store(proc, 0);
HalconAPI.StoreS(proc, 1, selectionMethod);
HalconAPI.StoreS(proc, 2, genParamName);
HalconAPI.StoreD(proc, 3, genParamValue);
HalconAPI.InitOCT(proc, 0);
HalconAPI.InitOCT(proc, 1);
HalconAPI.InitOCT(proc, 2);
int err1 = HalconAPI.CallProcedure(proc);
HClassSvm hclassSvm;
int err2 = HClassSvm.LoadNew(proc, 0, err1, out hclassSvm);
int err3 = HTuple.LoadNew(proc, 1, err2, out selectedFeatureIndices);
int procResult = HTuple.LoadNew(proc, 2, HTupleType.DOUBLE, err3, out score);
HalconAPI.PostCall(proc, procResult);
GC.KeepAlive((object)this);
return(hclassSvm);
}
/// <summary>
/// Approximate a trained support vector machine by a reduced support vector machine for faster classification.
/// Instance represents: Original SVM handle.
/// </summary>
/// <param name="method">Type of postprocessing to reduce number of SV. Default: "bottom_up"</param>
/// <param name="minRemainingSV">Minimum number of remaining SVs. Default: 2</param>
/// <param name="maxError">Maximum allowed error of reduction. Default: 0.001</param>
/// <returns>SVMHandle of reduced SVM.</returns>
public HClassSvm ReduceClassSvm(string method, int minRemainingSV, double maxError)
{
IntPtr proc = HalconAPI.PreCall(1852);
this.Store(proc, 0);
HalconAPI.StoreS(proc, 1, method);
HalconAPI.StoreI(proc, 2, minRemainingSV);
HalconAPI.StoreD(proc, 3, maxError);
HalconAPI.InitOCT(proc, 0);
int err = HalconAPI.CallProcedure(proc);
HClassSvm hclassSvm;
int procResult = HClassSvm.LoadNew(proc, 0, err, out hclassSvm);
HalconAPI.PostCall(proc, procResult);
GC.KeepAlive((object)this);
return(hclassSvm);
}