Practice Problem on k-NN Classification | MATLAB

%Code:

clc

clear all

close all

warning off

output=[];

x=input('Enter the first parameter');

y=input('Enter the second parameter:');

c=input('Enter the class');

m=c;

k=input('Enter the k value');

es=input('For how many times you want to run the code:');

for erts=1:es

a=input('Enter the first parameter value of the test:');

b=input('Enter the second parameter value of the test:');

distance=[];

for i=1:length(x)

    e=sqrt((x(i)-a)^2+(y(i)-b)^2);

    distance=[distance e];

end

distance

temp=0;

gemp=0;

for i=1:length(distance)

    for j=1:(length(distance)-i)

        if(distance(j)>distance(j+1))

            temp=distance(j);

            distance(j)=distance(j+1);

            distance(j+1)=temp;

            gemp=c(j);

            c(j)=c(j+1);

            c(j+1)=gemp;

        end

    end

end

classy=[];

for i=1:k

    classy=[classy c(i)];

end

output=[output mode(classy)];

c=m;

end

OUTPUT