How to plot a vector using stem?

I want to plot x = [0 2 3 2 1 -1]. I am new in Matlab and am having issues on exactly how to plot this. I also need to plot x = [0 3 1]. x = [0 1 2 2.5 3 2.5 2 1.5 1 0 -1] . I dont want the exact code (although wouldn't mind) but I would like some guidance on how to plot.

Answer 1

[Star Strider]

It is difficult to respond without providing at least some code. See the documentation for the stem (link) function for details.

For your first plot, try this:

x = [0 2 3 2 1 -1];
figure(1)
stem(x, 'filled')
set(gca, 'XLim',[0 numel(x)+1])

Ideally, you should also have an independent variable vector, however if you do not supply one, MATLAB will plot them sequentially with a ‘step’ of 1.