Plot separate data points in different colors

Hi, I'd like to plot data of one research subject, where each data point has a different grey-scale color depending on other data of the same subject.

So, for example: x=[2 5 8 9 3 4 6 4 8 1]

% grey colors of above data points, respectively: [0.1 0.5 0.4 0.2 0.9 0.6 0.8 0.2 0.3 0.1]

plot(x,'col',<here something to have each data point have a different shade of grey>)

I did this in R before which was quite simple, because in R when you give a bigger matrix of colors as input, R recognizes immediately that each data point should have the respective color; Matlab seems to strongly require a 3 element vector as color input.

Many thanks!

Answer 1

[Sean de Wolski]

With a for-loop:

x=[2 5 8 9 3 4 6 4 8 1];
c = [0.1 0.5 0.4 0.2 0.9 0.6 0.8 0.2 0.3 0.1];
threeones = [1 1 1];
for ii = 1:numel(H)

    line('xdata',ii,'ydata',x(ii),'marker','*','color',c(ii)*threeones)
end

[Joram]

Many thanks, this helped.