Assign certain colors to certain dots of a scatter plot

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Antonio 2017-4-20

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https://ww2.mathworks.cn/matlabcentral/answers/336398-assign-certain-colors-to-certain-dots-of-a-scatter-plot

编辑： Antonio 2017-4-21

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Hey y'all,

I need to assign certain colors to certain dots of a scatter plot. I've written something like this:

Color = zeros(size(Check,1),1);
for i = 1:size(Check,1)
    if Check(i) == 0
        Color(i) = [0.3010  0.7450  0.9330];
    elseif Check(i) == 1
        Color(i) = [0.4660  0.6740  0.1880];
    elseif Check(i) == 2
       Color(i) = [0.9290  0.6940  0.1250];
    elseif Check(i) == 3
        Color(i) = [0.8500  0.3250  0.0980];
    elseif Check(i) == 4
        Color(i) = [0.6350  0.0780  0.1840];
    end
end
scatter(x,y,Color,'filled','s');

Beware that 'x', 'y', 'Color' and 'Check' have the same dimension (15000 x 1). Numbers in 'Check' are either '0', '1', '2', '3', or '4'. I just need to assign five different colors to my scatter plot based on the numbers I have in 'Check' matrix. The colors should be those that I used in the code as I need this plot to match with another bar chart I already have. Any help will be highly appreciated!