vertical line through all the subplots

Question

Megha 2019-2-18

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https://ww2.mathworks.cn/matlabcentral/answers/445545-vertical-line-through-all-the-subplots

评论： Megha 2019-2-19

采纳的回答： KSSV

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How to give a long vertical line throughout one particular plot that contains multiple subplots.

I do not want annotation command.

I would like to use something like

line(x,y);

however this command does not show-up over entire range of subplots. I attach a smiliar figure below.

I want to specify (x,y) with respect to one of the subplots and then get a veritcal line througout the subplots.

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Answer 1

KSSV 2019-2-18

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x = 1:10 ;
y = rand(1,10) ;
figure
hold on
plot(x,y)
x1 = 5*ones(1,10) ; 
y1 = linspace(min(y),max(y),10);
plot(x1,y1,'--b','LineWidth',5)

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Walter Roberson 2019-2-19

When you say subplot, do you mean multiple lines draw in the same axes, or possibly even multiple overlapping axes? Or do you mean by using subplot() ?

If you mean by using subplot() then you have a few choices:

Use annotation(), as annotation() ignores subplot boundarys
create a large axes overlapping everything, and drawing the line inside that axes; you would set the background color of the axes to 'none' so the other axes show through. You have to be careful when you use subplot() with this, as subplot() will tend to delete overlapping axes
pick one of the axes and turn clipping off for it, and then draw a line. It is possible to draw outside of an axes if clipping is off