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Plotting a line x=constant

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cyberdyne
cyberdyne 2011-9-21
回答： Svitlana Strunina 2021-3-29
Hi,
What is a good way to plot a straight line parallel to y-axis for a particular x value?
I've used this code but the line is dotted
x=3;
y=0:0.001:0.3; %How much is long
plot(x, y, 'LineWidth', 10) % but is not large enough
  1 个评论
Ram Lakha Meena
Ram Lakha Meena 2020-8-27
This is what i did and the result:
clear
clc
close all
x=3;
y=0:0.001:0.3; %How much is long
plot(x, y, 'LineWidth', 10) % but is not large enough

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采纳的回答

Grzegorz Knor
Grzegorz Knor 2011-9-21
Another option:
line([x x],[y(1) y(end)],'LineWidth',10)

更多回答（3 个）

Francisco Williams
Francisco Williams 2020-8-24
You can use xline command
Paulo Silva
Paulo Silva 2011-9-21
plot(x*ones(size(y)), y, 'LineWidth', 10)
or
plot(x*ones(1,size(y,2)), y, 'LineWidth', 10)
Svitlana Strunina
Svitlana Strunina 2021-3-29
xline(3);
https://www.mathworks.com/help/matlab/ref/xline.html

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