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Stefan Raab


Last seen: 17 days ago |  Active since 2015

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Answered
Create vector/matrix inside function
Hello, this is because functions have their own workspace. There is a good explanation in the MATLAB doc, please execute the...

8 years ago | 1

Answered
Removing connecting lines between points in plot
Hello, add the following name value pair: 'LineStyle','none' Kind regards, Stefan

8 years ago | 6

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Answered
Where did PID Tuner extended mode go?
Hello, set "Domain" from "Time" to "Frequency", then the Bandwith and Phase Margin can be tuned. Is this what you were lookin...

8 years ago | 0

Answered
Fill the array after each loop iteration
Hello, why use the |r| at all? Try n_iter = 10; cosTheta = zeros(1,n_iter); % Memory preallocation for k=1:n_iter ...

8 years ago | 1

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Answered
how to assign values in for loop to a matrix in matlab function block?
Hello, the MATLAB Function block has limitations due to code generation. Either you preallocate the memory for |phi| and assi...

8 years ago | 1

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Answered
What does this symbol in simulink represent?
Hello right click on a signal: *Linear Analysis Points/Input Perturbation*. You need Simulink Control Design for this. Kin...

8 years ago | 0

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Answered
How do I import data form an excel file into MATLAB?
Hello, I think the following docs will help you. Execute the commands in the MATLAB Command Window: * Import Tool (Using G...

8 years ago | 0

Answered
How can I change the "Set Point"? (Feedback)
Hello, I think your feedback might not be correct. I will abbreviate _(X1-X2)_ as _Y_: _Y = G1(s) * (F(s)*W + C(s)*(R - Y)...

8 years ago | 0

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Answered
Why I get different result at Simulink? (Matlab, Simulink)
Hello, I suppose that depends on the solver. The documentation of the "step" function describes in the "More About/Algorithms...

8 years ago | 2

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Answered
Why doesn't my for loop work?
Hello, I think the error is in this assignment: userValues(i) = []; This will not just delete the value from the arra...

8 years ago | 0

Answered
FixedStepDiscrete solver cannot be used with continuous states in OP5600 Opal-RT
Hello, you could use "Display/Sample Time/All" to highlight the blocks with continuous sample time in an own color. Note that...

8 years ago | 1

Answered
compiling workspace variables in a model (protected or unprotected)
Hello, I suppose you can use the model workspace. You can achieve this by opening the Model Explorer (Ctrl + H) in your model...

8 years ago | 0

Answered
Simulink Signal Builder Custom signal help
Hello, Time Values: [0 1 1 2 2 3 3] Y Values: [0 0 1 1 -5 -5 5] Hope this helps. Kind regards, Stefan

8 years ago | 2

Answered
How can I programmatically get the dimensions of a Simulink signal?
Hello, you could use Simulink.Bus.createObject and create a Bus object of the bus that is sent to workspace, for example like...

8 years ago | 0

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Answered
How to create initial and final values on simulink?
Hello, I suppose you mean the inital values for the transfer function states? This question might be related to your problem:...

8 years ago | 0

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Answered
I'm trying to do blood vessel segmentation and when i run my code i get "Error using .* Matrix dimensions must agree.
Hello, could you please format your code the next time in a way that it is readable at first sight? Do 'grayscalefundus.jp...

8 years ago | 0

Answered
Simulink add vector as input to function block
Hello, at first I think that the syntax of your MATLAB code is wrong. It seems that you want to define a function in a for-l...

8 years ago | 0

Answered
How can I find eigenvectors of a matrix in Simulink?
Hi, if you execute "eig" from Simulink, all the output eigenvectors will be complex, as you can see at the page you already foun...

9 years ago | 0

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Answered
How to run simulink model from a function file?
Hello, you have to specify which workspace the simulation should use. The default value is your base workspace, which is differe...

9 years ago | 0

Answered
How to Numerical Nyquist Plot?
Hello, actually the following code doesn't work: s = tf('s') phi = (2s +3)/(s+1).^2 nyquist(phi) I have to ask what...

9 years ago | 0

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Answered
How do I make a cell array of doubles with non-uniform dimensions into a row numeric array? (not a column numeric array)
Try to create a new temporary variable for your new step_respone inside the while-loop. You want to convert the cell to a double...

9 years ago | 1

Answered
How do i plot multiple vectors tip to tail, beginning from the origin?
x = (vectors(:,1).*cosd(vectors(:,2))); y = (vectors(:,1).*sind(vectors(:,2))); plot([0; x; 0],[0; y; 0]); Is this what y...

9 years ago | 0

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Answered
how to solve three implicit equation?
Hi, at first you have to declare x, y and z as symbolic variables: syms x y z; Then you can use the function solve(): ...

9 years ago | 0

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Answered
How do I get the element of a cell in a case_expression that matches the switch_expression?
find(ismember(a,'cat')) or find(ismember(a,b))

9 years ago | 0

Answered
exist delta function ? in matlab??
You are looking for dirac(x). For more information type doc dirac in the Matlab command line

9 years ago | 0

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Answered
how to express the below equation in matlab, consider the roll off factors are 0,0.25,0.5,0.75,1
Depending on what you want, there are several ways to do this: 1) Set alpha to the desired value and t to an array of your ti...

9 years ago | 0