# John Doe

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**Content Feed**

Question

How to scale the axes for root locus?

Hello everyone. I am trying to use the command rlocfind to find a gain value. rlocus(num,den) axis([-22 3 -15 15]) zeta=0.7; ...

1 year ago | 0 answers | 0

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answersQuestion

How to remove the input port from Gain block of Simulink?

How can I remove the input port from the gain block? I just want to pass some gain value without any input. How can I do that?...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to generate time dependent exponential terms in Simulink?

Hello! I would like to deploy a exp(-2*t) function in Simulink where t is the simulation run time. How can I make this block...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to compute control system's performance parameters?

Hello everyone. J = 0.2; b = 0.1; K = 0.2; R = 10; L = 5; s = tf('s'); p = K/((J*s+b)*(L*s+R)+K^2); step(p,200) [y,t]=...

1 year ago | 2 answers | 0

### 2

answersQuestion

How to extract numbers from a string?

xx = '[10,10]' I want to convert the string xx to a number and extract the first and second value in a single line. What I am t...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to resolve empty inputdlg box issue?

Hello everyone! I have a inputdlg box. I want the inputdlg box to cancel the processing if the user pressed OK without giving a...

1 year ago | 1 answer | 0

### 1

answerQuestion

Unity slider step issue

Hello everyone. I want to move a slider from -50:50 with 1 step size. I have set the arrow keys of a slider and they work. How ...

1 year ago | 0 answers | 0

### 0

answersQuestion

How to use uisetfont?

Hello everyone. How can I use uisetfont command to place texts on a image loaded on a GUIDE axes? How to pass the handle? ...

1 year ago | 0 answers | 0

### 0

answersQuestion

How to code image types?

Hello everyone. How can I write the "if-else" loop so that MATLAB will identiy it is a Gray/Binary image? Thanks in advance!

1 year ago | 1 answer | 0

### 1

answerQuestion

How to handle montage image?

Hello everyone. After using the "montage" function, how can I apply the rgb2gray to the montage image? Thanks in advance!

1 year ago | 1 answer | 0

### 1

answerQuestion

How to eliminate colormap?

a = imread('cameraman.tif') ; image(a) The commands are producing the image in a colormap, not in gray tone (original color). ...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to design info tab for GUI?

How can I design a info tab for buttons in GUIDE other than with push buttons? I want the info button to have a info sign too. ...

1 year ago | 1 answer | 0

### 1

answerQuestion

How does the imhist function work for RGB image?

Hello everyone. I looked up the use of imhist function. It plots the histogram for a grayscale image. But if the input is an RG...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to bold dialog box?

Hi everyone. Is there any way that I can boldface the writings in a dialog box? Thanks in advance.

1 year ago | 1 answer | 0

### 1

answerQuestion

How to design GUI buttons?

Hello everyone. How can I design a GUI button like the picture above? With logos and text beside the logo? Thanks in advance....

1 year ago | 1 answer | 0

### 1

answerQuestion

How to fit the axes with the native resolution of the image?

Hello everyone. I have a GUI where I am loading an image into the axes. I want the axes to wrap around the loaded image's native...

1 year ago | 1 answer | 0

### 1

answerQuestion

How does the imreisze function works?

Hello everyone. I was trying out the built-in hallway photo in MATLAB. I resized it by 1.5 times and 2 times than the original i...

1 year ago | 1 answer | 0

### 1

answerHow to set slider's minimum value other than zero in GUI?

You can double click on the slider, and set the property of 'Value' in between Min-Max range to get rid of the warning.

1 year ago | 0

Question

How to move slider-bar with a step-size of two?

Hey there everyone. I have a slider which I want to increase like 1:2:10 by dragging the bar with mouse. How can I accomplish th...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to create picture effects in MATLAB?

Hello! I was wondering if one could create picture effects (i.e warmer, cooler, grunge) in MATLAB other than the built in functi...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to create undo and redo buttons in GUI that can be pressed multiple times?

Hello everyone! I have a working GUI where I have a undo and redo buttons. I have saved the current and previous states in two v...

1 year ago | 1 answer | 0

### 1

answerQuestion

Is GUIDE option avaibale in MATLAB 2020?

I want to know if one can still use the GUIDE option to build GUI like before in MATLAB 2020? Or it has been removed and one has...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to save figure window as a series of images and construct a video and gif file?

Hello everyone! I have a dynamic plotting in my figure window. I want to save snapshots of this figure after a fixed time interv...

2 years ago | 0 answers | 0

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answersQuestion

Gaussian modulated sinusoidal wave

Hello there everyone! Recently I have started practicing FDTD codes (mainly one dimensional) and while implementing the gaussian...

2 years ago | 0 answers | 0

### 0

answersQuestion

Computational Electromagnetics and MATLAB

Hello everyone. Recently my interest have piqued in computational electromagnetics field. I am starting to learn about FDTD meth...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to count the frequency of repeated values in an array of values with the index position?

clc clear t=0:.001:10; y=sin(2*pi*t); I want to count the frequency of repeated values in 'y' . How can I do that? I also w...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to generate Publication quality( for conferences/Journals) figures in MATLAB?

Hello everyone. This is a general query. How can I generate 'high-res' figures in MATLAB that can be used for publication (Conf...

2 years ago | 2 answers | 0

### 2

answersQuestion

Cumulative sinusoidal wave plotting

Question: I have to plot a cosine wave starting from 1 Hz. After plotting 1Hz cosine wave, increase the frequency to 2Hz and add...

2 years ago | 1 answer | 0

### 1

answerSame colormap with colorbar which has two axes

I think this link might have what you are asking for. https://www.mathworks.com/matlabcentral/answers/194554-how-can-i-use-an...

2 years ago | 0

Question

How to extract a high resolution figure from MATLAB?

Hello everyone. This is a basic query. I'd like to extract a "high-resolution" figure from my MATLAB. Is there any procedure to ...

2 years ago | 1 answer | 0