MATLAB: Linewidth for function step

colorlinelinewidthMATLABplotplottingresponsesetstepstep responsewidth

I plotted something but not sure why I can't adjust the linewidth of the result of the plot. I was able to change colors but linewidth doesn't change.

step(value_1);
set(value_1, 'LineWidth', 2);

Best Answer

Get the outputs of the step function, then plot them using a plot call:

[y,t] = step(value_1);
figure
plot(t, squeeze(y), 'LineWidth',2)
grid

The Control System Toolbox plot functions do not allow you to alter their properties easily, if at all.

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To plot a new set of bode plots on the existing subplots, while preserving the previous plots, use the handle to the subplot. This will allow bode(sys1) and bode(sys3) on the same set of axes after producing a new subplot - bode(sys2) - between the first and third subplots. The following code illustrates this:

h1 = subplot(211);
bode(sys1);
hold on;
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bode(sys2);
hold on;
set(gcf,'currentaxes',h1);
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MATLAB: Plotting the correct position of maximum

You also need to specify the time value in plot(). Try this

num = [0.1 0.35 0];
den = [1 3 2];
sys = tf(num,den);
figure();
step(sys);
[y, t] = step(sys);
grid
title('Respond of sytem Subjected to initial Conditoin')
xlabel('t')
ylabel('Output x(t)')
hold on;
[max1, idx1] = max(y);
[min1, idx2] = min(y);
plot(t(idx1), max1,'o')
plot(t(idx2), min1,'o')
legend('y(x)', sprintf('Maximum y = %0.4f',max1),sprintf('Minumum y = %0.3f',min1))

Best Answer

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MATLAB: How to add a bode plot to an existing bode plot within a subplot in MATLAB

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