How can I plot points of different color shade each iteration?

Hello,

I have an iterative algorithm and every iteration it gives me some points.

I want to plot the points at each iteration on the same graph such that the final result is like this:

The problem is that I want that for each iteration the color of the points changes a little (like having a gradient of colors). This way I have a scale of color and it is possible to undersand which points belong to which iteration. I also want to insert in the graph a legend of the color shade.

I don't know if I explained myself well.

Thank you for the help

Answer 1

[KALYAN ACHARJYA]

One way:

col=[define colors here];
% define colors in strings, like 'b','r'...see color in Matlab. 
% Define colors equal to loop iterations
for loop ieration
  scatter(variable1,variable2,col(i))
end

[Riccardo Andreoni]

Thank you for the kind reply. How can I print the legend in the plot? Thank you

[KALYAN ACHARJYA]

Please check here, any issue let me know?