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**Feeds**

Did the Reinforcement Learning Designer get removed?

The Reinforcement Learning Designer App is a new feature in R2021a which is currently scheduled to be release soon. It looks li...

3 years ago | 1

| accepted

Plotting Points On A Nyquist Curve

This would allow you to plot points on the nyquist plot for different frequencies. sys = tf(1,[1,1,1]); nyquist(sys); ...

8 years ago | 0

| accepted

What does infinite phase margin mean of a transfer function and is this even practical in the real world?

A few ways to interpret an infinite phase margin is: * you can rotate your frequency response plot on the Nyquist diagram and...

9 years ago | 1

| accepted

Transfer function nyquist diagram problem

If I understand what you mean by scale/wrap. The first system has finite magnitude for all values of jw. The second system has...

9 years ago | 0

Is there a way to retain data in root locus and bode plots when saving?

Currently there is not a way to retain this information when saving the root locus or bode plot. There is an open enhancement r...

10 years ago | 0

Is there a way to save gain/damping/overshoot data from a root locus plot.

Currently this can not currently be done. I have created an ehancement request to consider this. You could however compute the...

10 years ago | 0

| accepted

Create bode plot from state space in dB units?

The issue is setting the MagScale to log and using dB for units. Any magnitude less than one will be negative in dB and thus ca...

10 years ago | 0

| accepted

Ho to plot inverse Nichols grid lines?

Looking at the code in function "nicchart" may help you. Note: "nichchart" is an undocumented helper function that generates the...

10 years ago | 0

How to multi-color different models in model array responses?

One option is to plot them using a loop such as: figure hold on Color = {'b','r','g','k'}; sys = rss(2,1,1,4); ...

10 years ago | 0

How can I get closed loop bode on LTI Viewer, while using SISO design tool?

Hi Karthik, You can add the analysis plots by going to the "Analysis Plots" tab in the "Controls and Estimation Tools Manager...

10 years ago | 0

Solved

Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

10 years ago

ss2tf give different results depending on version of MATLAB

Over releases algorthims are updated to improve reliability and accuracy of computations. As a result answers can differ betwee...

10 years ago | 0

Is it possible to automatically add all margins to a bode plot via script?

Currently there is not a documented API to provide this functionality. The MARGIN command may help you to workaround this issue....

10 years ago | 0

How can I change the DEFAULT line thickness on a control systems toolbox function (rlocus, bode, step, lsim, etc..)?

Currently there is no documented programmatic way of doing this. I have created an enhancement request for this functionality. ...

11 years ago | 0

Solved

Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

11 years ago

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

11 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

11 years ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

11 years ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

11 years ago

generating bode plot in simulink

If you have the Simulink Control Design product you can use the "linearize" command to obtain a linear model. You can then use t...

11 years ago | 0

| accepted

How to find the equivalent transfer function(poles and zeros) having the Body diagram ?

The System Identification Toolbox has functions that estimate a transfer function from freqeuncy response data. For example the ...

12 years ago | 0

vector to sys transformation for bode plot

What is the dimension of the final system are you trying to get? For example, sys = tf(1,[1,1]); c = 1:10; 1...

12 years ago | 0

| accepted

How to do Control System Analysis (like Bode, ...) or get Transfer Function of Simulink Model?

The product Simulink Control Design has a command called linearize which computes a linear model (e.g. a transfer function) from...

12 years ago | 1

advanced frequency domain analysis of SISO models

If you have the Optimization Toolbox you might try the function FSOVLE which is used to solve equations of the form F(x) = 0. ...

12 years ago | 1

| accepted

margin bode plot lines wrong when 'TimeUnit' not seconds

This is a bug in the drawing of the margin lines when the units are not in seconds. I have created a bug report for it. Thank...

12 years ago | 0

| accepted

Line width

You can change the line width with the graphical interface using the plot edit mode. Select the line and right click and select ...

12 years ago | 0

State Space Models (Power System)

If I understand your question correctly Z1,Z2, Z3 are effectivly external inputs. This means you should be able to append them ...

12 years ago | 0

extracting values from bode()

Hi, The NY and NU sizes are based on the number IOs (inputs and outputs) your system has and would be fixed. You can compute ...

12 years ago | 2

| accepted