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Jorge Mario Guerra González


Last seen: 3 years ago |  Active since 2016

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Form an image of vertical ramp having a ramp values from 0 to 255 and dimension 256x256.
I suppose you want a ramp horizontally, since you only want values from 0-255 in a 256x256 matrix. Filled with integers. X=...

8 years ago | 2

Answered
gui interface and variables
The structure to use _popupmenu_ is something like this function popupmenu1_Callback(hObject, eventdata, handles) opti...

8 years ago | 1

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Answered
Reading .txt file of values separated by semicolon
C = textscan(fileName, '%s','Delimiter',';')

8 years ago | 1

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Answered
imshow 16 bit tif file turns to black
I think that it happends because your tif image is a grayscale image are it's said in properties. Maps are used for colour image...

8 years ago | 2

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Answered
Matlab's 'VariableNames' not accepting mix of numerical & non-numerical entries
It does not accept it because it has spaces and not because it has alphanumeric characters. It will allow this, for example: ...

8 years ago | 0

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Answered
Converting Mat file to Dicom file
for image_num = 1:320 dicomwrite(img(1:512,1:512,image_num),FILENAME); sprintf('Reconimg%s.dcm',num2str(image_nu...

8 years ago | 0

Answered
Finding the median of a vector without using the median tool in matlab?
All the code is fine, except for the last line. A=rand(1,51); Z=sort(A); n=length(Z); t=(n+1)/2; med=(Z(floor(t))+Z(cei...

8 years ago | 1

Answered
How would I add an extra dimension to an already existing matrix?
try this C=randi([-10,10],4,4); C(:,:,2)=C; Which creates a new layer of C matrix to create a 3D array

8 years ago | 1

Answered
How to make a 2D plot of a function with an additional parameter, which I can change "live"?
there is option to link plot when you open _figure_ for example: C=0; x=1:1:100; y=x+1; plot(x,y) then enable plo...

8 years ago | 2

Answered
How would I create an even and odd matrix within a specific range?
Like this lower=32; upper=44; A=lower+2:2:upper; B=lower+1:2:upper; result=[A;B]

8 years ago | 0

Answered
Save new name in file .mat and loop new name
You mean, how to save each BWAREA variable in a different file using a loop when you have variables that follow a pattern? try ...

8 years ago | 0

Answered
high altitude balloon prediction.
Well, Matlab is a powerfull tool for complex mathematical operations. Also, there are so many functions and toolboxes you can ta...

8 years ago | 0

Answered
How to find index of closest value in a column array for every value in another column array.
You can adapt this according to your needs. you just have to use loops to make a serires of comparations. Also you have to kn...

8 years ago | 0

Answered
Is it possible to form a matrix with strings and manipulate them?
Try this, it's using cell arrays. However I believe that in the newest versions of matlab cell arrys that include Sting work in ...

8 years ago | 1

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Answered
Want to convert .MAT to .TXT
Here is quick way to do that. Using fprint as @Adam says. (This writes with 5 decimal places) X=[1.90; 2.3]; Y=[2.5467;10....

8 years ago | 0

Answered
Is there a way to create a directory called 'aux' ?
Yes, that word is part of windows legacy. The following reserved device names cannot be used as the name of a file: *CON, PRN...

8 years ago | 2

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Answered
While loop inside another While loop (While in While)
I don't think there is a problem with the loops by themselves. You must have a problem with the logic, can you show the code you...

8 years ago | 3

Answered
I want to go to a particular page in a 100 pages pdf file using a push button in matlab GUI. What command should I use in the push button callback function?
The command to do that is: system("Acrobat directory" /A "page=20" "your file directory"); Do it as if you were doing it ...

8 years ago | 2

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Answered
How can i solve this equation ?
If you want to get multiple answers use _vpasolve_ function. Set the number of answers you want yo get and the code will pick so...

8 years ago | 0

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Answered
Hello, I have two matrices of different sizes and I want to find the indices for the elements in the bigger matrix that match with those in the smaller one, allowing for repetition?
Hello Alaa, I believe the way to do it is just comparing array A with each element of B using _find_ function. There must be a s...

8 years ago | 0

Answered
How to choose option using radio buttons?
You mean you want to get an outcome from the radiobutton clicking? *Radiobutton 1 Callback* %% function radiobutton...

8 years ago | 1

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Answered
how can i sum over to variable in matlab?
you mean something like this.... I'm supposing F,K,G are random arrays, are N and N' independent values??? because the no...

8 years ago | 0

Answered
Adding new values in between existing values in an array
use the _linspace_ function to add the values inbetween the array, also use an auxiliary variable. Maybe try this code. %% ...

8 years ago | 1

Answered
How do I use a vector to change the color of multiple panels in the GUI interface?
I dont understand exactly what are you trying to do, one way to change the colour of the objects in the GUI is this. <</matla...

8 years ago | 1

Answered
How can i solve this equation ?
Just use the function solve, which uses numerical techniques to find variables. try this. %% syms lambda Mt=1; % Th...

8 years ago | 0

Answered
How to calculate mean and variance?
Since you want to do it without using the functions, just do: A=rand(1000,1); %your array sum1=0; for i=1:length(A)...

8 years ago | 4

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Question


Problem with dicomwrite pixel values
I've been working on a project where I use the DICOM write function to save my files after procesing, values of my matrix go fro...

8 years ago | 0 answers | 0

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Answered
Const char into mex files
I solved it by myself. If anyone is in trouble with this the answer is given in this page http://www.mathworks.com/help/ma...

8 years ago | 1

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Question


Const char into mex files
Hello, I'd like to know how can I export my Matlab strings to use them whitin a MEX file, as it follows. I'm quite new using ...

8 years ago | 1 answer | 0

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