Plot smooth lines from limit data with colormap and legend

A=rand(10,10);
hold on
for i = 1:size(A,2) 
    plot(A(:,i))
    hold on
end

Hello I store my data in a matrix, and I want to plot each colomn, I want to plot them in the colormap like this one, from purple to yellow, and give each color a legend, like "point 1", "point 2"

Also I know this could be bias, but I only have limited data, 10 points, anyway to smooth (interpolation) the line from the 10 ponts?

Answer 1

[Voss]

cmap = [ ...
     13   8 135; ...
     67   3 158; ...
    106   0 168; ...
    145  14 163; ...
    177  42 144; ...
    204  71 120; ...
    225 100  98; ...
    242 133  75; ...
    252 166  54; ...
    252 206  37; ...
    240 249  33; ...
    ]/255;

N = size(cmap,1);
A = (N:-1:1)+rand(N,1);

hold on
for ii = 1:N
    plot(A(:,ii),'Color',cmap(ii,:));
end

legend(sprintfc('Point %c',64+(1:N)))

[Miraboreasu]

Thanks, how to use current colormap even it is not purple and yellow, and how did you smooth the line?

[Voss]

To use the current colormap, get it from the axes (instead of specifying it in the code like I did above):

cmap = get(gca(),'Colormap'); % colormap of the current axes

Then use cmap as above to set the line colors.

I didn't do any line smoothing; that's just plots of random data with a different offset for each line so you can see them.

A = (N:-1:1)+rand(N,1);

[Miraboreasu]

@Voss Thanks, but I do want some interpolation between each point.

[Voss]

Use interp1