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Andrew Ouellette

MathWorks

Last seen: Today Active since 2020

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Programming Languages:
Python, C++, C, Java, MATLAB, HTML
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Control Systems

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Answered
How can I change the line width in a graph which is generated by rlocus command ?
Starting in R2026a, you can do this directly from the rlocusplot command. rlocusplot(rss(3),LineWidth=5)

19 hours ago | 0

Answered
I wonder how to make the lines thicker in rlocus graph
Starting in R2026a, you can do this directly from the rlocusplot command. rlocusplot(rss(3),LineWidth=5)

19 hours ago | 0

Answered
How to remove the number caused by 'grid on' and How to change the legend mark
The pzplot chart API makes tasks like this much simpler. w0=300; l1=2*w0; l2=w0^2; k=60; s=tf('s'); r=[0.9,1.2,1.3,1.4,1.8...

20 hours ago | 0

Answered
Setting different line colors according to the ColorOrder array using pzplot in subplots
10 years later, you can now do this via the pzplot chart API. Here is a demo showing how you can set a custom color order for a...

20 hours ago | 0

Answered
How to change the thickness of grid lines in pzplot() or in pzmap()
It is now simple to do this via the pzplot chart API. h = pzplot(drss(3)); %Create chart h.AxesStyle.GridVisible = "on"; %Enab...

20 hours ago | 0

Answered
How to add Cartesian grid in pzplot plot ?
You can do this directly from the pzplot chart object starting in R2026a. h = pzplot(rss(3)); %Create chart h.AxesStyle.GridVi...

20 hours ago | 0

Answered
Change pzplot marker size
You can now do this directly from the pzplot command starting in R2026a. pzplot(rss(3),MarkerSize=10)

20 hours ago | 0

Answered
bode diagram linearization failure
Hi @mehmed celebi, we will need more information to help you with this problem. What happens when you try to linearize your bo...

20 hours ago | 0

Answered
Change just the ylims of the Magnitude plot from the bode TF
This process has become much simpler with the introduction of the bode chart object. h = bodeplot(rss(3)); %create chart h.YLi...

20 hours ago | 0

Answered
Add reference line to a Bode Plot
Since this question was originally asked, the advent of a bode chart object and a yline chart decoration makes this process much...

20 hours ago | 0

Answered
BodePlot: Plotting straight lines on the Mag and Phase plots. Can access the phase plot, to do so, but not the mag plot
Hi @Gerard Nagle, I would recommend avoiding the use of "findobj" in this manner. Utilizing the chart API is the preferred (and...

2 months ago | 0

Answered
RC circuit and its frequency response
Hi @Zeyuan, Have you tried using the bodeplot function? f_s = 44.1*10^3; % sampling frequency Ts = 1/f_s; % sample time tau ...

4 months ago | 0

Answered
Why is event PreUpdate and PostUpdate not triggered in ChartContainer?
Hi @Jacob-Jan Sloots, I can't give you a great answer as to why the behavior differs between ChartContainer and ComponentContai...

5 months ago | 1

Answered
Issue with InputVisibility for lsimplot
Hi @Hannes The documented chart API for LSimPlot was introduced in R2024b. You will need to upgrade to that release or later to...

5 months ago | 0

Answered
Unable to resolve this.scaledProject2 what causes this error?
Please see this bug report: https://www.mathworks.com/support/bugreports/3860288

5 months ago | 0

| accepted

Answered
Bode plot with right half plane zero
Hi @Anindya, You are looking for the phase matching options in bodeplot, which you can interpret as "If PhaseMatchingEnabled, t...

7 months ago | 1

Answered
How to design controller for coupled 2 input 2 output system?
Hi @Eric, From your comments on your post, it looks like you would like to tune 2 I controllers for your MIMO system. As you've...

7 months ago | 0

| accepted

Answered
Errors when trying to define Design Requirements in Control System Designer
Hi @Jason, This is a bug in the product. You should be able to change the line mentioned in this error from this: Error in con...

10 months ago | 0

| accepted

Answered
Transimpedance Amplifier transfer function behaving differently in Matlab as well as Simulink than expected
Hello @Jayesh N, The results of lsim are as expected. The mean value will be the dc gain of the system multiplied by the mean v...

11 months ago | 1

| accepted

Answered
Frequency Response Estimator - how is the frequency response computed
Hi @jacob, You can see a description of the FRE algorithms on its documenation page. Generally, using more estimation periods ...

12 months ago | 0

Answered
Inheritance, abstract and constant properties.
You can approximate this behavior with Dependent properties and getter methods. classdef (Abstract) my_supr properties (De...

12 months ago | 0

Answered
Frequency response estimation error
Hi @shanchang, We can't really say exactly what the issue is without all the inputs to your frestimate call- your model (mdl), ...

12 months ago | 0

Answered
How to work with control system tuner/designer app with Simscape Multibody System ?
Hi @Samarasekara Muhandiramge Salila Dinendra, Your post seems to a few distinct but related questions: 1) How can I obtain a ...

1 year ago | 0

Answered
How to access GriddedLPVSS data at different scheduling parameters?
Hi Ali, You can sample your LPV systems using psample. SSArray = rss(36,2,2,6); % random 2x2x6 ss array s = struct( ... ...

1 year ago | 0

Answered
How can I make the Nichols chart background grid more prominent when using Nicholsplot? (Too faint.)
Hi Charles, Starting in R2024b, the nicholsplot function returns a chart object with a documented API. You can see the properti...

1 year ago | 0

Answered
Bodeplot with XLim option does not rescale y-axis in R2024b
Hello Tor, This is a side effect of the update to charts in R2024b. The chart's Y limits are no longer linked to its X limits. ...

1 year ago | 0

| accepted

Answered
Change marker colour of pzplot
Hi Jan, Starting in 24b, we introduced new chart and response objects for pzplot(). Each model you input to pzplot() will gene...

1 year ago | 0

| accepted

Answered
MATLAB R2024 Rb
Hi Shahin, 2 notes: 1) In R2024b as of update 2, rlocusplot() generates an incorrect response for improper models. This bug wi...

1 year ago | 0

Answered
Simulating the impulse response of a higher order filter.
Hello, You are encountering this behavior because your cascaded system is poorly conditioned numerically. Hopefully this is not...

1 year ago | 0

Answered
How can I set linewidth directly in bode command?
Starting in R2026a, you can do this directly via the constructor. figure(); sys = tf(4,[1 0.5 4]); h = bodeplot(sys,LineWidth...

1 year ago | 1

| accepted

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