Randomize a marker color for a graph

im trying to randomize a color of a marker but it keeps giving me an error and even if i write out the full color it still doesnt work. i dont know how to fix this.

[Rik]

You don't actually index your array of letters. How do you expect Matlab to guess what you intended to do?

Answer 1

[David Hill]

m='o+*.x';
c='rgbcmyk';
x=randi(20,1,8);
y=randi(20,1,8);
figure;hold on;
for n=1:length(x)
  scatter(x(n),y(n),'LineWidth',rand*8,'MarkerEdgeColor',c(randi(7)),'MarkerFaceColor',...
      c(randi(7)),'Marker',m(randi(5)));
end