How can you change the colour of the plot when using scatter function?

How can you change the colour of the plot when using scatter function? I have used all the predefined colours already.

Answer 1

[Honglei Chen]

The syntax of

scatter(x,y,s,c)

supports c being a 3-ciolumn matrix where each row is a combination of RGB values, e.g.

x = 1:10;
y = 1:10;
scatter(x,y,[],rand(10,3));

see

doc scatter