How do I use >7 colours on a scatter plot?

Hi guys,

I have 62 time-distance plots (all stored in 'Picks' =[t,d,62] ) and want to display them together; But I can only produce a plot with a max of 7 colours (plot attached).

is there (i) a way to get 62 colours or better (ii) a way I can change plot symbol every 7 colours? (eg ., X, * ... so I dont reuse the same markers)

this is my code

for i = 1:62;
scatter(Picks(:,2,i), Picks(:,1,i),'.');
hold on ;
leg{i}=['FFID',num2str(i+365)];L{i}=i; 
end;
a=~isnan(cell2mat(L)); l=leg(a); legend(l); hold off

Any help would be really appreciated! Thank you

Andy

Answer 1

[Walter Roberson]

pointsize = 25;

scatter(Picks(:,2,i), Picks(:,1,i), pointsize, i, '.');

and after

colormap(jet(62))

The i will be used as the colormap index.

[Andy]

Thank you so much for helping! I completely see you're idea here, it makes sense - but I always get

"C must be a single color, a vector of the same length as X, or an M-by-3 matrix."

if this is the modified code;

    pointsize = 25;
    for i = 1:62
    scatter(Picks(:,2,i), Picks(:,1,i),pointsize,i)
    hold on 
    leg{i}=['FFID',num2str(i+365)];L{i}=i; % Assigning FFID to shot
    end
    colormap(jet(62))

'pointsize' works fine, the 'i' for c does not.

[Walter Roberson]

col = repmat(i, size(Picks,1), 1);
scatter(Picks(:,2,i), Picks(:,1,i), pointsize, col);