millercommamatt
North Carolina State University
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MATLAB Central Treasure Hunt finisher badge
Awarded to millercommamatt on 24 Jun 2021
10 of your answers have been accepted
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Contribute at least one answer each month for 3 consecutive months
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Solve all the problems in Draw Letters problem group
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Solve Project Euler problems using Matlab
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Feeds
Color that shows by the imshow, doesn't match to the color that I expect.
This displays as expected for me. imshow(uint8(cat(3,... [0 128 0;0 255 255;255 255 255;0 0 0],... [0 0 0;255 255 128...
casi 2 años hace | 1
| aceptada
ERROR // Array indices must be positive integers or local values
It's because you can round to zero which is invalid as an index. Use ceil instead.
casi 2 años hace | 0
Display Volume in App Designer
The parent for volshow has to be a Viewer3D object. The parent of a Viewer3D object can be a Figure object (default) | Panel obj...
casi 2 años hace | 0
| aceptada
I want to open a tab-delimited XY text file in matlab, use the numerical values of the XY columns to create a matrix and plot the signal.
fid = fopen("AxographSampleData\220812_WT_MO_H134R_EA_1391 015.txt","r"); C = textscan(fid,'%f %f',"Delimiter",'\t','HeaderLine...
casi 2 años hace | 1
| aceptada
How to remove/add elements to an array?
% B = diff(A) = [768 12 757 767 12 756 ...1524.....768 13 754 271] % note that B will be one less in length than A % if B(n...
casi 2 años hace | 0
How to annotate borders with different colors?
This example from the Documentation includes a way to do this. https://www.mathworks.com/help/images/correcting-nonuniform-illu...
casi 2 años hace | 0
Different Size of array after each loop interation
If you want the data from each file to be on their own row, you'll need to use something like a cell array or a structure since ...
casi 2 años hace | 0
Pregunta
Map Axes and Colorbars - Colorbar Overlapping Labels
When creating a colorbar to go with a map axes based plot, the colorbar overlaps the labels. What's the optimal solution for p...
casi 2 años hace | 1 respuesta | 1
1
respuestaCounting number of white > 5 Pixel objects in BW image
You should be able to to something like this. I'm waiting on a slow scatter interpolation on my client to finish so I haven't te...
alrededor de 2 años hace | 0
Colorbar with histogram next to it
You can do this in Matlab. However, there's nothing like this built in, so you're going to have the handle all the placements of...
alrededor de 2 años hace | 0
| aceptada
Timestamp - x axis
It's because you're turned your datetime type variable into a datenum and plotted that. Datenums are the number of days since Ja...
alrededor de 2 años hace | 0
Why does my .csv file create spaces between each of my data points? It makes it to where I cannot graph precipitation against the date.
You're defining the columns as strings so the output is going to include whitespace. You want something like: ... data = ...
alrededor de 2 años hace | 0
Plotting surface returns error
Your first two inputs need to be reversed. That is, the order in which they are provided to the function need to be switched.
alrededor de 2 años hace | 0
| aceptada
Date/Time Processing and Formatting Issues
dt = datetime(x,'InputFormat', 'yyyy:DDD:HH:MM:ss.SSSSSSSSS');
alrededor de 2 años hace | 0
My code is only returning the last output
vec = mat(i,end); In this line you're always using the last column by specifying end. I think you want: vec = mat(i,:); If I'...
alrededor de 2 años hace | 0
Mask image in Matlab
I think imclose will do what you want. https://www.mathworks.com/help/images/ref/imclose.html
alrededor de 2 años hace | 0
Resuelto
SatCom #1: Wavelength of an electomagnetic wave
*Satellite and Space Engineering - Problem #1* _This is the first of a series of problems looking at topics in satellite and ...
alrededor de 2 años hace
Resuelto
Draw a 'N'!
Given n as input, generate a n-by-n matrix 'N' using 0 and 1 . Example: n=5 ans= [1 0 0 0 1 1 1 0 0 1 1 0 ...
alrededor de 2 años hace
Resuelto
Draw a 'X'!
Given n as input Draw a 'X' in a n-by-n matrix. example: n=3 y=[1 0 1 0 1 0 1 0 1] n=4 y=[1 0 0...
alrededor de 2 años hace
Resuelto
Draw 'J'
Given n as input, generate a n-by-n matrix 'J' using 0 and 1 . Example: n=5 ans= [0 0 0 0 1 0 0 0 0 1 0 0 ...
alrededor de 2 años hace
Resuelto
Draw 'F'
Draw a x-by-x matrix 'F' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...
alrededor de 2 años hace
Resuelto
Draw a 'Z'.
Given _n_ as input, generate a n-by-n matrix like 'Z' by _0_ and _1_ . Example: n=5 ans= [1 1 1 1 1 0 0 0 1 ...
alrededor de 2 años hace
Resuelto
Draw 'I'
Given n as input, draw a n-by-n matrix 'I' using 0 and 1. example: n=3 ans= [0 1 0 0 1 0 0 1 0] n=...
alrededor de 2 años hace
Resuelto
Draw 'H'
Draw a x-by-x matrix 'H' using 1 and 0. (x is odd and bigger than 2) Example: x=5 ans= [1 0 0 0 1 1 0 0 0 1 ...
alrededor de 2 años hace
Resuelto
Draw 'D'.
Draw a x-by-x matrix 'D' using 0 and 1. example: x=4 ans= [1 1 1 0 1 0 0 1 1 0 0 1 1 1 1 0]
alrededor de 2 años hace
file parsing identifier need to choose the correct identifier
st = '04_T_A_tx01_3009.txt'; id_cell = regexp(st,'tx\d+','match'); id_char = id_cell{1};
alrededor de 2 años hace | 0
Resuelto
Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifm...
alrededor de 2 años hace
Resuelto
Specific Element Count
Given a vector _v_ and a element _e_, return the number of occurrences of _e_ in _v_. Note: NaNs are equal and there may be n...
alrededor de 2 años hace
Resuelto
Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...
alrededor de 2 años hace
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