- assign a classlabel according to the k-nearest neighbour
rule
SYNOPSIS
int knn_majority
(k, pattern)
ARGUMENTS
int
k
The number of neighbours to be taken into account.
double
*pattern
The pattern to be classified, a vector of size [1..n].
RETURNS
The function returns the classlabel of pattern according to the
k nearest neighbours.
FUNCTION
This function assigns a classlabel to pattern according to the nearest
neighbour rule. Around the pattern its k nearest neighbours are
determined, of these k nearest neighbours the classlabels are calculated. The
classlabel which will be assigned to pattern is the one which occurs
the most in the k neighbours. The function knn_init must have been
called in advance. This function differs from knn_classify since
that function only counts the classlabel occurence, whereas this function
assigns a label.
NOTE
In order to let this function work well, knn_init has to be called
in advance to allocate the necessary structures. The variable pattern is
in vector format.
