How to remove the horizontal line at 0

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Curious Mind
Curious Mind 2021-2-4
回答： David Hill 2021-2-5
Hi All,
  1. How do I get rid of the horizontal line at the zero (0) mark on the y-axis in a line plot? Please see attached image below as an example. I want the horizontal line hidden.
2. How do I superimpose a barchart on a line plot?
Thank you all.
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Curious Mind
Curious Mind 2021-2-5
Hi, thanks for the comments. I have something like this:
Plot(x,y)
y=0 is not even part of the code but for some reason it shows up in the plot.
Walter Roberson
Walter Roberson 2021-2-5
Please save x and y to a mat file and attach the file here for us to test.
You can get that kind of output if your x values are not in strict monotonic order.

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采纳的回答

David Hill
David Hill 2021-2-5
x=1:10;
y=randi(20,1,10)-10;
b=bar(x,y);
ax=gca;%to access axes properties
hold on
plot(x,y,'r*--')
b.ShowBaseLine='off'

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