Change colour in stem plot, for only particuar values

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Nikolas Spiliopoulos
评论： Nikolas Spiliopoulos 2020-5-30
Hi all,
I have a vector that I need to create a stem plot.
However, i would like to put a different colour to the 4th and 9th element
Could you hekp me with that?
I saw some similar questions but I don't really understand how to do it
thanks a lot!

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Tommy
Tommy 2020-5-29
You could overlay two separate stem plots:
data = randi(10,10,1);
idx = [4, 9];
ax = axes;
hold(ax, 'on');
temp = data; temp(idx) = NaN;
stem(ax, temp, 'b');
temp = nan(size(data)); temp(idx) = data(idx);
stem(ax, temp, 'g');

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