Hello guys, i want to add threshold on my probability density function that is vertical line on x coordinate, how to do that pls help me

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Ted Erdenekhuyag
Ted Erdenekhuyag 2019-10-23
回答： Bhaskar R 2019-10-23
Capture123.PNG
x=[-5:0.1:5];
a=normpdf(x,1,1);
z=normpdf(x,3,2);
plot(x,a,'b',x,z,'r')
legend('normal signal','abnormal signal')
ylabel('probability density function')
xlabel('process variable value')
title('probability distribution of normal data and abnormal data')
how to add vertical line at 1 of x line which is threshold

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回答（1 个）

Bhaskar R
Bhaskar R 2019-10-23
In MATLAB R2018b mathworks introduced xline(xvalue) command for this kind of requirement
In your context the code is
hold on;
xline(1);
Assuming you have R2018b or higher version.

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