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millercommamatt


North Carolina State University

Actif depuis 2013

Atmospheric Research Scientist

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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...

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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.

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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...

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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...

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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...

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A répondu
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...

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A répondu
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 ...

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Question


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...

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réponse

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Counting 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...

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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...

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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...

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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 = ...

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A répondu
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.

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Date/Time Processing and Formatting Issues
dt = datetime(x,'InputFormat', 'yyyy:DDD:HH:MM:ss.SSSSSSSSS');

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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'...

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A répondu
Mask image in Matlab
I think imclose will do what you want. https://www.mathworks.com/help/images/ref/imclose.html

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A résolu


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 ...

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A résolu


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 ...

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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...

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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 ...

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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 ...

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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 ...

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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=...

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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 ...

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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]

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A répondu
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};

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A résolu


Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifm...

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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...

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A résolu


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...

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A résolu


Draw a '0' in a one matrix!

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