How can I insert a detail in the peak of the curve ?
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Hi
How can I insert a detail in the peak of the curve like the attached curve ?
omega = 125.6:0.1:502.4;
freq = 2*pi*omega;
figure (1)
plot (freq,V_86,'g', freq,V_89,'k', freq,V_91,'m',freq,V_92,'c',freq,V_95,'b','LineWidth',2);
legend('FVF = 0.86','FVF = 0.89','FVF = 0.91','FVF = 0.92','FVF = 0.95');
xlabel ('Frequency [Hz]');
ylabel('|Voltage FRF| [V/g]');
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/353027/image.png)
답변 (2개)
Serhii Tetora
2020년 8월 28일
use function axes for zommed peak. you can define those Position and Limits.
and annotation('arrow') for arrow.
Star Strider
2020년 8월 28일
Experiment with this:
f = @(w,c) 1./(w.^2 + 10*w - c+50);
w = linspace(20,80,250);
c = (0.1:0.2:0.9).';
figure
ax1 = axes('Position',[0.2 0.1 0.7 0.8]);
ax2 = axes('Position',[0.25 0.65 0.15 0.2]);
plot(ax1, w, f(w-50,c))
Lv = (w>=43) & (w<=47);
plot(ax2, w(Lv), f(w(Lv)-50,c))
ax2.XTickLabel = [];
ax2.YTickLabel = [];
annotation('arrow',[0.37 0.48], [0.8 0.8])
producing:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/353045/image.png)
This should get you started. You can use this code with your own data and adjust it to present the plot you want. (You will have to experiment with it.)
댓글 수: 2
Star Strider
2020년 8월 28일
My code runs for me without error (in R2020a). I cannot reproduce the error you reported.
You need to adapt my code to your data and curves. I am simply making it easier for you, so all you need to do is to adapt your vectors to use my code.
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