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How to use least-square fit and gaussian surface for 3D data?
This FEX file will fit a Gaussian with a constant background in any dimension, https://www.mathworks.com/matlabcentral/fileexch...

2년 초과 전 | 1

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Input multiple region for polyshape
There is no unique way to divide a series of points into closed polygons. If you haven't inserted the NaNs already, the intended...

2년 초과 전 | 0

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Function that makes Anonymous Functions
When I attempted this, the anonymous function contained variables instead of numerical coefficients I assume you mean that in t...

2년 초과 전 | 0

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Why does argmin index of NaN array have a value of 1 and not NaN?
I imagine it is so that the logical test tf (below) will always return true. If the I output were NaN, an error message would r...

2년 초과 전 | 0

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How to open neural network training screen?
I don't know what you mean by the "net.mat file" and I don't think you can reopen the screen. However, if you called trainlm wit...

2년 초과 전 | 0

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Numerical first derivative of irregularly spaced data
It seems to work: t=sort( rand(1,1000)*2*pi ); cos_t=gradient(sin(t))./gradient(t); I=1:20:1000; plot(t,cos(t),'b--' , t...

2년 초과 전 | 0

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removeLayers function: Incorrect number or types of inputs or outputs for function removeLayers.
Your layers variable is a Layer object array, whereas removeLayer requires the input to be a LayerGraph. It is unnecessary, in a...

2년 초과 전 | 1

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Generating numbers whose sum is 1 during genetic algorithms optimization
lb=zeros(12,1); ub=lb+1; Aeq=ub'; beq=1;

2년 초과 전 | 0

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How to open new command window?
You can launch a new Matlab session with its own command window, but the way you are going about saving work is very peculiar. M...

2년 초과 전 | 0

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Speeding up interpolation with scattered interpolation
Your data is gridded, so you should be using griddedInterpolant, as opposed to scatteredInterpolant. Gridded interpolation is mu...

2년 초과 전 | 0

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Why does abs cause bad matlabfunction evaluation?
It is not the matlabFunction version that is evaluating things badly. It is the first version, with the double application of su...

2년 초과 전 | 0

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Show img in coordinate system and perform transformations
I=flipud(imread('peppers.png')); T = [1 0 2 1]; T(3,3)=1; [Iw,R]=imwarp(I, affine2d(T')); h=imshow(Iw); ax...

2년 초과 전 | 1

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Supply partially complete Jacobian for fsolve()
and let MATLAB use its own numerical methods for the missing ones? fsolve cannot be made to do finite difference calculations ...

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Sum of following elements in array
sum_following = cumsum([s(2:end),0],"reverse");

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How to deal with files in which rows have different numbers of columns
I think you would probably have to read the file in as a string array using readlines, and then do your own text parsing.

2년 초과 전 | 0

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plot strain ellipse and principal stress axes using eigenvalues and eigevectors.
a=10; %long axis b=3; %short axis theta=30; %rotation angle p=rotate( scale(nsidedpoly(1000),[a,b]) ,theta); plot(p)

2년 초과 전 | 0

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Intersections between two discretised functions
f = @(x) x.^2; x = linspace(-5, 5, 100); v1 = f(x); v2 = ones(size(v1)); X0=x(diff(sign(v1-v2))~=0); X=nan(size(X0)); ...

2년 초과 전 | 1

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Im trying to implement this equation in matlab
It's normally better to use FFTs for cyclic convolution, but if you insist on doing it on the non-Fourier domain, then you can u...

2년 초과 전 | 0

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exportgraphicsunusably slow and memory overruns
Try export_fig, https://www.mathworks.com/matlabcentral/fileexchange/23629-export_fig

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Plot image in 2d plain and apply operations like translation/rotation and reflection
Use imrotate, imtranslate, and flip.

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Manually modifying title position in tiledlayout environment
I was wondering if it is possible to move the title a little closer to the upper limit of the figure environment than it current...

2년 초과 전 | 1

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Newtons Method but error message "Singular Matrix"
Landing on a point with ill-conditioned J is a hazard of plain-vanilla Newton's method. That's why people usually don't use it. ...

2년 초과 전 | 0

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Error : Unable to use a value of type optim.problemdef.OptimizationVariable as an index.
It sounds like the better approach would be to have the 4x4 binary matrix AssignedMatrix be the fundamental unknown optimization...

2년 초과 전 | 0

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how to incorporate boundary conditions as constraints in fmincon optimization?
Use fcn2optimexpr to implement nonlinear constraints.

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Programmatically determine which Deep Learning layer properties contain learnables
In the Deep Learning Toolbox, there are a variety of layer object types. The display methods of these objects indicate which obj...

2년 초과 전 | 답변 수: 2 | 1

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Rotate 3D Shape so Specific Face is Normal to Given Vector
You can use this to compute the alpha and direction arguments needed for rotate. function [alpha,direction]=vecrot(vstart,vend)...

2년 초과 전 | 0

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How to solve large linear complex equations
Since it is a linear and unconstrained system of equations, just use mldivide, \

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Help with parametrizing a function and creating points
syms x y P [1,2] syms r(t) P1=[x1, y1]; P2=[x2, y2]; r(t)=P1+t*(P2-P1)

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How can i extract data from given variables, for suppose i want to extract charge and discharge separately.
I will assume your data is in a table: type=["charge";"discharge";"discharge";"charge"]; data=(1:4)'; T=table(type,data) ...

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Wanna find specific index(raw) which meet multiple(~3) conditions
use ismembertol to allow for floating point noise, A=rand(5,3); A(4,:)=[39,13.9,17.2]+100*eps Index = find( ismembertol(A...

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