The problem is that each of your calls to scatter is creating five separate sets of data for a total of 10 sets. But, you only request the legend to be displayed for the first two.
From the documentation:
- To plot multiple sets of coordinates on the same set of axes, specify at least one of x or y as a matrix.
To illustrate what I mean, here is your example, but displaying the legend for all of the sets of data:
A1 = randi(10, [5 5]);
B1 = randi(10, [5 5]);
A2 = randi(10, [5 5]);
B2 = randi(10, [5 5]);
scatter(A1,B1,'g');
hold on
grid on
scatter(A2,B2,'b');
title('TEST');
xlabel('X','FontSize',8,'FontWeight','bold');
ylabel('Y','FontSize',8','FontWeight','bold');
legend
Depending on what you really are trying to do, you might just need to reshape or redefine your data as vectors instead of matrices.
