Point of intersection of two plotted column vectors

조회 수: 1 (최근 30일)
Sandura Shumba
Sandura Shumba 2020년 5월 23일
댓글: Sandura Shumba 2020년 5월 26일
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
plot(FAR);
hold;
plot(FRR);

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KSSV
KSSV 2020년 5월 23일
편집: KSSV 2020년 5월 25일
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')
  댓글 수: 4
KSSV
KSSV 2020년 5월 25일
편집: KSSV 2020년 5월 25일
I have edited the answer check it. You need to download the function interX and save it in your working folder.
Sandura Shumba
Sandura Shumba 2020년 5월 26일
Thank you very much

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