Operator Reference

HALCON Operator Reference / Classification / K-Nearest Neighbors

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get_sample_num_class_knnT_get_sample_num_class_knnGetSampleNumClassKnnGetSampleNumClassKnnget_sample_num_class_knn (Operator)

get_sample_num_class_knnT_get_sample_num_class_knnGetSampleNumClassKnnGetSampleNumClassKnnget_sample_num_class_knn — Return the number of training samples stored in the training data of a k-nearest neighbors (k-NN) classifier.

Signature

get_sample_num_class_knn( : : KNNHandle : NumSamples)

Herror T_get_sample_num_class_knn(const Htuple KNNHandle, Htuple* NumSamples)

void GetSampleNumClassKnn(const HTuple& KNNHandle, HTuple* NumSamples)

Hlong HClassKnn::GetSampleNumClassKnn() const

static void HOperatorSet.GetSampleNumClassKnn(HTuple KNNHandle, out HTuple numSamples)

int HClassKnn.GetSampleNumClassKnn()

def get_sample_num_class_knn(knnhandle: HHandle) -> int

Description

get_sample_num_class_knnget_sample_num_class_knnGetSampleNumClassKnnGetSampleNumClassKnnget_sample_num_class_knn returns in NumSamplesNumSamplesNumSamplesnumSamplesnum_samples the number of training samples that are stored in the k-nearest neighbors (k-NN) classifier given by KNNHandleKNNHandleKNNHandleKNNHandleknnhandle. get_sample_num_class_knnget_sample_num_class_knnGetSampleNumClassKnnGetSampleNumClassKnnget_sample_num_class_knn should be called before the individual training samples are accessed with get_sample_class_knnget_sample_class_knnGetSampleClassKnnGetSampleClassKnnget_sample_class_knn.

Execution Information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

KNNHandleKNNHandleKNNHandleKNNHandleknnhandle (input_control)  class_knn → HClassKnn, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Handle of the k-NN classifier.

NumSamplesNumSamplesNumSamplesnumSamplesnum_samples (output_control)  integer → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Number of stored training samples.

Result

If KNNHandleKNNHandleKNNHandleKNNHandleknnhandle is valid, the operator get_sample_num_class_knnget_sample_num_class_knnGetSampleNumClassKnnGetSampleNumClassKnnget_sample_num_class_knn returns the value 2 ( H_MSG_TRUE) . If necessary, an exception is raised.

Possible Predecessors

add_sample_class_knnadd_sample_class_knnAddSampleClassKnnAddSampleClassKnnadd_sample_class_knn

Possible Successors

get_sample_class_knnget_sample_class_knnGetSampleClassKnnGetSampleClassKnnget_sample_class_knn

See also

create_class_knncreate_class_knnCreateClassKnnCreateClassKnncreate_class_knn

Module

Foundation

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ClassesClasses | | Operators