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Fifteen12


Last seen: 5 mois il y a |  Actif depuis 2022

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Just another grad student trying to figure out just about everything

Programming Languages:
Python, C++, C, Java, MATLAB, Arduino
Spoken Languages:
English

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the global stiffness of two 4x4 matrices of truss
To add the matrices together, just arrange them by indices. % Dummy values for k1 and k2 k1 = ones(4,4); k2 = ones(4,4) * 2;...

environ un an il y a | 1

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Identifying regions in matrix rows
I've also put some work into this, but I'm unclear with what you want as your output, so I've got it to a good stopping place an...

environ un an il y a | 0

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How to use isoutlier based in a part of the data?
Your question is a little complex, as the definition of an outlier is not very well defined. For instance, in your vector, the s...

plus d'un an il y a | 1

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How to set a loop for calculate the distance between a certain location and a lot of data in csv.file using latitude and longtitude?
You'll need to import the CSV file. You can see this answer for more information: https://www.mathworks.com/matlabcentral/answer...

plus d'un an il y a | 0

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How can I create for loop on contourf and save plots somewhere?
for i = 1:width(data) I = scatteredInterpolant(data(:,[1 2]),data(:,i)); [lat,lon] = meshgrid(unique(data(:,1)),unique...

presque 2 ans il y a | 0

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how to place two images on canvas by a reference vector to relate their relative distance, one image is fixed
This code does a sloppy job of showing relative placement using the coordinate placement methods discussed in the comments. It d...

presque 2 ans il y a | 1

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How can I increase the size of matrices in cell arrays with each iteration of a loop?
This code gives two solutions, one that can be implemented after your original iteration (it just harvests the values and puts t...

presque 2 ans il y a | 0

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How to shift experimental data (not a function) in a loglog plot?
I believe you have to do it point by point. Since a 1 unit increase is equivalen to 10x the value, if you wanted to shift upward...

presque 2 ans il y a | 1

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Applying ode45 by giving input by different formula(collocation points)?
You can read more about specifying specific solution points for ode45 at this link (highlighted). In this case, you want to solv...

presque 2 ans il y a | 0

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Invalid use of operator
As Rik mentioned, this is not the correct language. MATLAB (like other programming environments/languages) has a strict syntax t...

presque 2 ans il y a | 1

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How do I cut the columns in a cell of a cell array according to values in a numerical array?
I've made this a little long in order to improve legibility. Hope this works! % Make sample data foo = zeros(100, 2); bar = z...

presque 2 ans il y a | 0

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2D Surface Random Number Plot
The best way to do this is to use sequential indices, rather than row, column. Then you're just keeping track of a single number...

presque 2 ans il y a | 1

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Need help with regexpi expression for multiple variants of the same phrase
I think you want to look at making regular expressions. Try this: A=isempty(regexpi(data,'(slow cadence|slow stepping)')); You...

presque 2 ans il y a | 0

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I'm writing a code to find the intersection points of two circles.
You can find the documentation for assert here: https://www.mathworks.com/help/sltest/ref/assert.html Assert stops your simulat...

presque 2 ans il y a | 0

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map of outline robot
For animation techniques to make the robot move, you might want to check this out: https://www.mathworks.com/help/matlab/creatin...

presque 2 ans il y a | 0

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why do I receive error (Index in position 2 exceeds array bounds. Index must not exceed 1.) when I put different sizes like (2x2)
The error your getting is raised when you try to access part of an array that isn't declared. For example: C = ['a', 'b', 'c'];...

presque 2 ans il y a | 0

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Find random values that match a specific criteria
Broken down: speed = randi(80, 10, 1); m = median(speed); pool = speed(speed > median(speed)); len = length(pool); final_sp...

presque 2 ans il y a | 0

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Write a Matlab script that accepts the file “FilteredEvidence.wav” and performs the signal processing operations
You use a variable l in your code, but I don't see it defined (line 6). Make sure you set l equal to some value earlier in your ...

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How to write code for battle ship
I'm guessing you want a list of indices where your ships are located. This list would have as many entries as the total sum of a...

presque 2 ans il y a | 0

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using less than operator and combination of if and for statement
Your for loop is using a conditional as its input. In MATLAB you need to specify a list. Try: for DiameterOfDisc = 1:102

presque 2 ans il y a | 0

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What do the codes in line 9 and 10 do in the program?
This is using logical indexing to filter out specific numbers. This code is selecting all the indices in y1 that correspond to t...

presque 2 ans il y a | 0

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Finite Element: Filling nxm matrix by extracting values from another nx1 matrix
From your question, V is mxm and W is nx1. Assuming that's true going forward: n = 16; m = 4; offset = 1; W = randi(10, [n, ...

presque 2 ans il y a | 0

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Plot binary sequence of type char (MATLAB)
seq = randi(2, [1, 20]) - 1; y = seq(1); x = 0; for i = 1:length(seq)-1 y(end+1) = seq(i); x(end+1) = i; if se...

presque 2 ans il y a | 0

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Why do I get "Array indices must be positive integers or logical values" error when using "angle" function?
Without seeing your code it's impossible to answer your question, but try outputing all your variables to the terminal, it's eas...

presque 2 ans il y a | 1

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I need to reproduce the paper result
I'm not sure what the difference between x_a and x_a,m is, but maybe this would work: x = [1, 1, 1, 1, 1, 0]; m = 4; t = 6;...

presque 2 ans il y a | 0

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How do I combine two cell arrays to form pairs that I can later calculate the distances between; one array contains my X Coordinates and the other contains my Y Coordinates.
Your question doesn't use cell arrays (those are for holding objects with arbitrary type), but if in your actual code you are us...

presque 2 ans il y a | 0

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Subtract two values of an array and multiply them by a constant
If you put everything into an array (rather than a cell array) you can do logial indexing: rng(1); constant = 2; minpk = [ran...

presque 2 ans il y a | 0

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Question


Genetic Algorithm not returning best found solution
TL;DR: ga is returning a random solution and cost (Fval) for my given problem, even when there are better feasible solutions in ...

presque 2 ans il y a | 2 réponses | 0

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How do I delete a group of rows when a condition is met in one?
Simple but long answer using an iterator: Edits: Changed code to catch moving indices as data is resized and expand removal r...

environ 2 ans il y a | 0