How to solve the error using plot stating color value must be a 3 element vector.

I am working with particle swarm optimization.

In the code the following input are used

centroids = 2;

dimensions = 2;

particles = 2;

iterations = 1;

simtime=0.001;

dataset_subset = 2;

wth respect to the above code ,

cluster_colors_vector = rand(particles, 3) is used.

And for plotting the graph the followng command is used:

[ plot(centroid,1,particle),(centroid,2,particle),'o','color',cluster_colors_vector(particle,:)];

Could anyone help me why cluster_colors_vector = rand(particles, 3) is used.why it cant be cluster_colors_vector = rand(particles, 2).If i use the command i am getting stating Error using plot

Color value must be a 3 element vector.

Could anyone please help me on this.

Answer 1

[KSSV]

Note that the color which you speicfy should be a RGB color code......so it should be a 1X3 vector......YOu can check the below:

plot(rand(1,10),'color',rand(1,3))

Randomly the plot will associate some random color.