Variable output as "1x0 empty double row vector" halfway through the program after previous iterations in the for loop has normal output values for the same variables.
显示 更早的评论
Why am I getting 1x0 empty double row vectors for the last several iterations of the variables Peaks and X_Peak_value? The output seems to produce values for these variables up to a point and then the output only displays "1x0 empty double row vector".
Here is my code...
clear all;clc
Data = InputData('CJ1');
for i = 1:1:90
for x = 1:1:900
vel = 0;
vel = vel + 1*x;
alt = 0;
alt = alt + 500*i;
R = aerodynamics(vel, alt,Data);
V(x) = vel;
RC(x) = R.RC;
end
[Peaks, X_Peak_value] = findpeaks(RC, V)
ROC_max(i)= Peaks;
Vel_max_ROC(i) = X_Peak_value;
end
plot(Vel_max_ROC, ROC_max)
回答（2 个）
Cris LaPierre
2023-5-9
0 个投票
We can't run your code to explore why specifically, but my guess is that they are empty because findpeaks did not identify any peaks in your input RC.
It may happen that no peaks can be found:
RC = 1:4;
V = 1:4;
[Peaks, X_Peak_value] = findpeaks(RC, V)
类别
在 帮助中心 和 File Exchange 中查找有关 Descriptive Statistics 的更多信息
2023-5-9
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
