Error using horzcat dimensions

This is my code

pra= kependudukan((kependudukan(:,6)==1),:);

ks1=kependudukan((kependudukan(:,6)==2),:);

ks2=kependudukan((kependudukan(:,6)==3),:);

Characteristics = {'usia','pendidikan','pekerjaan','Tanggungan','status','luas'};

pairs = [1 2; 1 3; 1 4; 2 3; 2 4; 3 4; 1 5; 1 6; 2 5; 2 6; 3 5; 3 6; 4 5; 4 6;5 6; 6 4];

h = figure;

for j = 1:16,

x = pairs(j, 1);

y = pairs(j, 2);

subplot(4,4,j);

 plot([pra(:,x) ks1(:,x) ks2(:,x)],...

       [pra(:,y) ks1(:,y) ks2(:,y)], '.');

 xlabel(Characteristics{x},'FontSize',10); 

 ylabel(Characteristics{y},'FontSize',10);

the error: Error using horzcat Dimensions of matrices being concatenated are not consistent.

Answer 1

[Rik]

You are try to concatenate (i.e. combine) some arrays that don't have matching sizes. The code below should work, but might not be what you mean.

plot([pra(:,x);ks1(:,x);ks2(:,x)],...
    [pra(:,y);ks1(:,y);ks2(:,y)], '.');