Respondida
Make array with elements repeating as many times as specified in another list.
a{1} = [1, 2, 4]; a{2} = [5, 3, 8, 9]; a{3} = [2, 6, 3, 7, 8, 1]; y_val = repelem(1:length(a), cellfun('length', a))

casi 3 años hace | 2

Respondida
Adjacency matrix.I want to simply the code .
n = 10; x=accumarray([2 3 n-1 n]',1); B = toeplitz(x,x); G=graph(B); plot(G)

casi 3 años hace | 0

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Respondida
Generate random integers that sums to a specific number within a specific range
Revisit this old thread here is the randfixedsum version but for integers. It's a quick implementation and it is slow, but math...

casi 3 años hace | 1

Respondida
Move a Point on a 3D surface
% Generate test mesh x = 1:15; y = 1:15; [X,Y] = meshgrid(x,y); Z = peaks(15); F = delaunay(X,Y); % Your points to be p...

casi 3 años hace | 0

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Respondida
How can I extract multiple rows from an array at regular intervals?
No need for reshape and repmat, etc... A = reshape(1:720, 72, 10); B = A((0:12:66) + (1:6)', :) % 66 is size(A,1)-6

casi 3 años hace | 2

Respondida
how to write all the for loop outputs in a single vector
function y = everyOther(x) L = length(x); i = 1:2:L; y = zeros(size(i)); for j = 1:length(i) y(j) = x(i(j)); end end

casi 3 años hace | 0

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Respondida
I don't want any imaginary number , and I don't want any negative number in my matrix, but none of MathWork can even answer it.
Just add the max statement to clamp the variable nu01 whenever you set nu01 (2 places): nu01(1,w+1,z) = ...; nu01(1,w+1,z) =...

casi 3 años hace | 1

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converting matlab into python using an official matlab add on
Not official but recently I need to do conversion of a small function, and ChatGPT works great.

casi 3 años hace | 0

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Respondida
Is it possible to restore all the variables from the previous session?
Unfortunately no. It's up to you to regularly save the intermediate results and make you program able to warn start from where ...

casi 3 años hace | 0

Respondida
Which method I can use for reduce number of samples or Increase the samples?
Take a look at interp1 https://www.mathworks.com/help/matlab/ref/interp1.html

casi 3 años hace | 0

Respondida
Fastest way to convert nested cell arrays into a Matrix?
If the deep nested arrays are column vectors Tmp=cat(2,ExampleCellArray{:})'; OutputMatrix=reshape(cat(2,Tmp{:})', [A_Length B...

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Respondida
How can I do to break this while loop with the keyboard?
Try this test function test fig = uifigure(); ax = uiaxes('Parent', fig); h = plot(ax, NaN); stop = false; function...

casi 3 años hace | 1

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Respondida
scatteredInterpolant gives out NaN in some query points
Probably your data contains NaN at one or several points. I don't quite understand your code datau.Value seems not valid sin...

casi 3 años hace | 0

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Respondida
Why the calculation error enhances as the phase angle increases when using atan2?
It doesn't seem weird to me. Both of the (atan2+unwrap) and (sin+cos) do somekind of undo modulo 2*pi differently. unwrap make...

casi 3 años hace | 0

Respondida
Nested parfor effecting fprintf?
I add this line before the IF test something = rand() < 0.01 if(something) break end it works for me, my command window...

casi 3 años hace | 0

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Respondida
All combinations of a data set without mixing data across arrays
If you have R2023a use the stock combinations function Var1 = [1400, 1700, 1900]; Var2 = [1340, 1680, 1900, 1871, 789]; Var3 ...

casi 3 años hace | 0

Respondida
Discrepancy between local maxima of cfit and global minima in second derivative
You missunderstand and missinterpret the second derivative. At the local minima the first derivative is 0 and the second deriv...

casi 3 años hace | 1

Respondida
how can i vectorize it?
If you prefer ugly and unreadable code %I BUILD DATA IN THIS EXAMPLE row=10; col=8; profit = rand(row,col); c3 = randi(si...

casi 3 años hace | 1

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Respondida
Solving an overdetermined linear system
least square solution syms e0 e1 e2 T1=1; T2=3; T3=4; T4=5; T5=6; TM1=8; TM2=7; TM3=6; TM4=5; TM5=4; Eqns = [e0 + T...

casi 3 años hace | 0

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Respondida
Reshape matrix dimensions to a larger and sparse one
A = [0.8147 0.1576 0.6557 0.7060; 0.9058 0.9706 0.0357 0.0318; 0.1270 0.9572 0.8491 0.2769;...

casi 3 años hace | 0

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Pregunta

When assignment is allowed?
The question concerns the requirement of the sizes of the assignment between two arrays. To my great surprise this is allowed ...

casi 3 años hace | 1 respuesta | 1

1

respuesta

Respondida
How to use "eig" function in optimproblem?
Put whatever you want to compute (with eig) in a standard matlab function (e.g., in an mfile) then use fcn2optimexpr to convert ...

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Respondida
Efficient and quick way to summation of large data points
instead of doing over and over (in the loop on the bottom) such calculation sum(omega(i1:i2)); you could do once the cumulati...

casi 3 años hace | 0

Respondida
i just want to know the given code is correct or not.
Replace the calculation with epsilon_complex = (epsilon_inf + sum(A ./ (C.^2 - E^2 - 1i * v * E))); epsilon_real = real(epsilo...

casi 3 años hace | 0

Respondida
How I would determine if a string contains multiple substrings?
myString = "This has some words in it."; subStrings = ["This","some"]; hasAllSubstrings = isequal(regexp(myString, subString...

casi 3 años hace | 2

Respondida
Implement the "total variation distance" (TVD) in Matlab
Supremum is very often implemented by max, since one can only list or compute a finite set on computer. However your formula d...

casi 3 años hace | 1

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Respondida
Error using .' TRANSPOSE does not support N-D arrays. Use PAGETRANSPOSE/PAGECTRANSPOSE to transpose pages or PERMUTE to reorder dimensions of N-D arrays.
Your image I is 3D RGB not 2D so you have to do 2D interpolation page by page for k = size(I,3):-1:1 I2(:,:,k) = interp2...

casi 3 años hace | 0

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Respondida
Calculating the area of overlapping polgyons
Is it what you want? (I'm not sure about the desired output if polygons are not hierachical included to each other, see variant ...

casi 3 años hace | 0

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Respondida
Can't find references for lqr.m
https://www.mathworks.com/products/control.html

casi 3 años hace | 0

Enviada

randinrc
randi with non-repeat constraint.

casi 3 años hace | 1 descarga |

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