Effacer les filtres
Effacer les filtres

How can i plot a vertical line (x=constant) in a maximum of a curve ?

2 vues (au cours des 30 derniers jours)
Mallouli Marwa
Mallouli Marwa le 22 Mar 2017
Réponse apportée : Rik le 22 Mar 2017
Hi
How can i add three vertical line in the maximums of this curve.
The program and the curve are attached.

Réponses (1)

Rik
Rik le 22 Mar 2017
%First find the maximum values
maxes(1)=max(p100(:));maxes(2)=max(p1k(:));maxes(3)=max(p100k(:));maxes(4)=max(p10M(:));
maxes=maxes(:).*1e6;
maxes=repmat(maxes,1,2);
%Now find the x-extent
x_range=[min(freq(:)) max(freq(:))];
%plot the curves
semilogy(freq,p100*1e6,'b',freq,p1k*1e6,'m',freq,p100k*1e6,'c',freq,p10M*1e6,'--')
legend('100\Omega','1k\Omega','100k\Omega', '10M\Omega')
xlabel('Excitation frequency (Hz)')
ylabel('|Power FRF| [\muW/g^2]')
%plot the limit lines (you could also use a loop for this)
hold on
plot(maxes,x_range)

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