![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/299933/image.png)
Point of intersection of two plotted column vectors
3 次查看(过去 30 天)
显示 更早的评论
Hi, I am very new to matlab and i was hopping someone could assist me with this simple problem I have two plotted lines FAR and FRR. FAR and FRR are two column vectors. I simply need to find the point of intersection, i just need the value where the intersection happens. Could someone please assist. My code is as follows
FRR FAR
1 0
0.984375 0.005331753555
0.953125 0.06575829384
0.8828125 0.1279620853
0.828125 0.1800947867
0.78125 0.2458530806
0.703125 0.3382701422
0.46875 0.4502369668
0.265625 0.5805687204
0.0859375 0.7357819905
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/298568/image.png)
plot(FAR);
hold;
plot(FRR);
0 个评论
采纳的回答
KSSV
2020-5-23
编辑:KSSV
2020-5-25
This your function.....go for it.
data = [1 0
0.984375 0.005331753555
0.953125 0.06575829384
0.8828125 0.1279620853
0.828125 0.1800947867
0.78125 0.2458530806
0.703125 0.3382701422
0.46875 0.4502369668
0.265625 0.5805687204
0.0859375 0.7357819905] ;
[m,n] = size(data) ;
FRR = data(:,1) ;
FAR = data(:,2) ;
L1 = [1:m ; FRR'] ;
L2 = [1:m ; FAR'] ;
P = InterX(L1,L2) ;
figure
hold on
plot(L1(1,:),L1(2,:))
plot(L2(1,:),L2(2,:))
plot(P(1),P(2),'*k')
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/299933/image.png)
4 个评论
更多回答(0 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!