清空筛选条件
清空筛选条件

Hold on not working for plotting transfer function MATLAB

1 次查看（过去 30 天）
Sebastian Remar
Sebastian Remar 2020-6-11
评论： Star Strider 2020-6-11
%% DATA
k1 = (1.5+0)/2; % Should be unstable
k2 = 1.5; % Should be marginally stable
k3 = (1.5+2.5)/2; % Should be stable
k4 = 2.5; % Should be stable
k5 = (57.5+2.5)/2; % Should be stable
k6 = 57.5; % Should be stable
k7 = 1000; % Should be stable
x = [k1,k2,k3,k4,k5,k6,k7];
% Vector of ks
t = 0:.01:5;
steps = ones(1,length(t)); % Input - step
t_f = tf([1 18] , [1 6 -27]);
color = ['g','b','r','y','m','k','c']; % color of plots
m=1;
hold on
for i = 1:length(x)
t_f = tf(x(i)*[1 18] , [1 6+x(i) -27+18*x(i)]);
result(i) = t_f;
y = lsim(result(i),steps,t);
% figure(i) When I use this method it actually plots the transfer functions
plot(t,y,color(:,m),'linewidth',1.5) % Plot w/ different colors
m = m + 1; % var to change color
end
legend({'k1','k2','k3','k4','k5','k6','k7'},'Location','NorthWest')
hold off
I don't understand why it doesn't plot the rest of my x matrix. It plots the first value, x(1), then it just gives me lines = 0 of different colors. When I use figure(i), it works, but that's not what I need right now. Any suggestions? thanks

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2020-6-11
All the curves are plotted, however some overplot others given the limited resolution.
Change the plot call to:
plot(t(y>1E-4),y(y>1E-4),color(:,m),'linewidth',1.5) % Plot w/ different colors
set(gca, 'YScale','log')
to see them, although some are barely visible. (For some reason that I did not explore, semilogy does not work here.)

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

Community Treasure Hunt

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

Start Hunting!

Translated by