Help needed: empty plot when plotting for loop

1 次查看（过去 30 天）
JD
JD 2019-9-17
评论： JD 2019-9-18
Hello,
Below is my code. I am trying to plot all values of the for loop but I am getting an empty plot. What am I doing incorrectly?
for i=2:1:1369
a = (V(i+1)-V(i-1))/(2*(t(i+1)-t(i-1)));
A = ((1/2)*Rhoa*Cd*Af*(V(i).^3));
G = (Mv*g*cos(0).*V(i));
I = (1.1*Mv.*a.*V(i));
Pw = (A+G+I)/1000;
end
figure
hold on
i=2:1:1369;
plot(i,Pw);
grid
xlabel('Time (s)')
ylabel('Power, Pw (KW)')
set(h,'linewidth',2)

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2019-9-17
Do not assign to Pw. Instead assign to Pw(i-1)
  2 个评论
JD
JD 2019-9-18
Hi Walter,
After being able to plot the graph based on your response to this question, I realized my for loop is not doing what I want. Would you be able to help with the below question as well?
Thanks
https://www.mathworks.com/matlabcentral/answers/480854-how-to-reference-a-variable-saved-as-mat-file-to-execute-code

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Line Plots 的更多信息

标签

产品


版本

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by