Simple code for adding continuous color scale to a line plot in Matlab

PlotColor.m

%generate a set of offset lines
nlines = 10; 
t = 1:nlines;
for m=1:nlines
    x(:,m) = t+m;
end

figure %plot all the lines in the default colors
h(1) = plot(t,x(:,1));
hold on
for m=2:nlines
    h(m) = plot(t,x(:,m));
end
hold off

clist = parula(nlines); %generate a color map equal to the number of lines

for m=1:nlines
    h(m).Color = clist(m,:); %update the color of the lines
end

colorbar %display a colorbar next to the plot
caxis([1 nlines]) %update the color axis