how to use gscatter in matlab 2012b?

Hi, I am using matlab 2012b, and wondering whether the grouping variable in the following command has to be a categorical variable. gscatter(x,y, group).

Answer 1

[KSSV]

YOu need not to worry about gscatter, you may plot like this:

    data = rand(100,2) ; 
    x = data(:,1) ; y = data(:,2) ;
    %%Assign three categories

    cat = zeros(100,1) ;
    cat(randperm(100,25)) = 1 ; 
    cat(randperm(100,30)) = 2 ; 
    cat(randperm(100,45)) = 3 ; 

    %%plot

    figure
    hold on
    for i = 1:3
        plot(x(cat==i),y(cat==i),'.','color',rand(1,3),'markersize',20)
    end

[Muazma Ali]

well I need a 3d plot and have a datset with my columns and I want one of them to be a grouping variable column

[KSSV]

ok....so what worry?