Plot issue (maybe using set and gca)

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Sarah 2012-5-5

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https://ww2.mathworks.cn/matlabcentral/answers/37516-plot-issue-maybe-using-set-and-gca

Hey guys, here is the code that I have:

      stem(Tim,Var1,'MarkerSize',0,'Color','k'); hold on;
      stem(Tim,Var2,'MarkerSize',0,'Color','g');
      stem(Tim,Var3,'MarkerSize',0,'Color','r'); hold off;
      datetick('x','mm/dd');
      set(gca,'YTickLabel',{0; 1; 2; 3;})

So for a specific length of time, Var1 = 1, Var2 = 2, Var3 = 3. I expect my Y axis to represent this, and the stem for each Var should rise to the associated value.

However, when I plot, this is not the case. Here is what actually happens:

http://i.imgur.com/wFRt0.png

Any help or advice on this issue would be much appreciated!

EDIT*** For this plot's time period, Var2 should be the only one showing.

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Sarah 2012-5-5

Because all Vars are defined as absolute time ranges. It just turns out that for the time period that I have plotted in the x axis, Var2 is defined.

Think of the Vars as "events" that occur during absolute time. I just want a record of those events.

Sarah 2012-5-5

Var3 does not occur within the time period that I have plotted

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回答（1 个）

Sarah 2012-5-5

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/37516-plot-issue-maybe-using-set-and-gca#answer_46850

I have thought about it a little more. I think this has to do with my YTickLabel. Basically, I have to make sure that the label corresponds with the value of Var.

Does anyone know how I can make each YTick correspond with the value of Var1 - 3?