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DGM


Last seen: Today 2015 以来アクティブ

Hi, I'm nobody.
I don't belong here, but I have nothing better to do.
Matlab used to be part of my work.
Now it's part of my hobbies.
That's pretty sad, really.

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How to turn text into numbers
Well I'm sure there are more robust ways, but if all the file ever has is those two lines in that specific order with that speci...

約19時間 前 | 0

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How to close open contours
The contours are open because that's what describes the data. To close the contours misrepresents the behavior of the data at t...

2日 前 | 0

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Problme with Text analysis
I'm terrible with regex, but this might get you somewhere. Replaces everything but lowercase alpha and underscores. A = {'9.ba...

2日 前 | 0

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I am missing the test signal "WashingMachine-16-8-mono-200secs.mp3" from the denoise example.
That should be included with the audio toolbox after R2019a. The files should be in $MLROOT/toolbox/audio/samples/ where $MLRO...

3日 前 | 0

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Segment Image and Save as New Picture
You can't have an image of "just the dog", in the sense that the image must be a rectangular array. The background must be some...

3日 前 | 0

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what is a(n) MATlab code that can help me calculate the volume of a cylinde then increase that result by 20% to get a result of 18m.
h0 = 15; dV = 0.2; hf = h0*(1+dV); fprintf('Oh my god, it''s %.2f meters tall! Aieee!',hf)

3日 前 | 0

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How to normalize signal to have mean=0 and amplitude 0 to 1
If you have a dataset where the mean is zero and the amplitude is within the interval [0 1], then the entire dataset is zero-val...

3日 前 | 0

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Remake this without a loop
What's wrong with just using the test you're already doing? In the case you've given, the vector is unnecessary. A(A >= 1.5) =...

4日 前 | 1

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Adding a row vector into the diagonal of another vector with m, n dimensions using for loop.
Actually, using a loop was pretty dang simple, now that I tried it. A = randi(9,5,10); b = 11:20; diagonalthing(A,b) dia...

4日 前 | 0

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How to get the centerline of a binary region
There's this. A = imread('arc.png')>128; B = bwmorph(A,'skel',inf); % skeletonize B = imfill(B,'holes'); % get rid of any...

5日 前 | 1

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how to remove [0,0,0] cell from an array
Consider: C = {rand(2,3) rand(3,3) rand(4,3) [0 0 0] rand(5,3)}.' iszerotuple = cell2mat(cellfun(@(x) isequal(x,[0 0 0]),C,'un...

5日 前 | 0

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grazing goat problem, how much of the area can the goat graze ?
Your answer is reasonable. As a point of verification: rf = 1; rg = 0.8; % intersection point locations % could also use ...

5日 前 | 0

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How are the indices computed in gray2ind(...)?
Here's an example for a uint8 image: A = imread('cameraman.tif'); maplength = 32; [B bmap] = gray2ind(A,maplength); % as...

5日 前 | 0

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make a matrix out of list
It's not really clear if you want the contents of the file to be read into an array, or whether you just want a numeric (or othe...

5日 前 | 0

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Adding noise to image and removing it with average filter
The line mentioned in the error is certainly nonsensical, but afaik it shouldn't actually throw an error (at least in R2009b - R...

5日 前 | 1

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Why isn't my matrix being filled?
When you define a function, you need to describe its input arguments and output arguments. This function definition has no in...

6日 前 | 0

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Menu command list of colors converted to integers
I know this is part of the other question, but to clarify, the menu() command simply returns the index of the selected element w...

6日 前 | 0

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Convert nested text cell array
I'm sure there's a simpler way, but idk. This will convert to a table. Note that the table columns are cell vectors. This i...

6日 前 | 0

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Loop iteration not working
Consider: x = 1:10 This expression by itself results in x being stored as a vector for y = 1:10 y end y In a loop sta...

6日 前 | 0

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No output from a for and elseif loop
That should be readlines(). P is a cell array of numeric vectors, so address it accordingly. Any assignment to J overwrites th...

7日 前 | 0

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Turning an entire script into a function
Try something like this. function [playerwon] = Battleship3(boardsize,numofguess,numships) % playerwon = Battleship3({boards...

7日 前 | 0

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Taking a string input and transferring it to a integer
Meh. numbands = 4; colornames = {'black','brown','red','orange','yellow','green','blue','violet','gray','white','gold','silv...

7日 前 | 1

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Cropping images around the center of an image with a particular size
I don't know how you're getting that huge size. EDIT: I know why. I'll mention that at the end. The code will return a 225x22...

7日 前 | 0

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Remove a "plane" from my 3d plot
You could try to clip off the excess points with NaN and be left with a gap in the surface at the joint, or you could just avoid...

8日 前 | 2

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Error in array bounds
% ... % this loop has been simplified to the point that it works % for sx = 0.01:5 % s = [sx, 0, 0; % 0, sx, 0...

9日 前 | 0

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How can I add more colors to semilogy?
The colors which are automatically used when plotting things with no explicitly-defined colors are specified by the axes 'coloro...

9日 前 | 0

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Sampling pixel intensities according to distance matrix...
Disregarding splitapply() for a moment, the issue of working with non-integers can be avoided by using the histogram tools to bi...

9日 前 | 0

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I cant edit the textboxes in app designer. how do i fix this?
This might be related: https://www.mathworks.com/support/bugreports/1797911 https://www.mathworks.com/matlabcentral/answers/41...

10日 前 | 1

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How do I confront the value of a matrix?
I'm not really sure what this is supposed to mean. %(x+y+z):3=value16 What guarantees that the sum of x,y,z is less than 3? ...

10日 前 | 0

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how to place the rectangle for all the blob
The second loop needs to be inside the first one, otherwise it's only going to plot the bounding boxes for the blobs in the last...

10日 前 | 0

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