matrix multiplication for "3-D" matrices
If you have the parallel computing toolbox, you can do this on the GPU with pagefun(@mtimes,A,B) but this may only provide gai...

más de 2 años ago | 0

how to have function with scalar value
"I have a code and 2 objective functions" If you really do want to treat this as a multi-objective problem, you should probably...

más de 2 años ago | 0

Build new matrix from look up table
C=CD( interp1(B,1:numel(B),A,'nearest') );

más de 2 años ago | 1

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how to calculate area, perimeter and circularity of objects in an image using regionprops
Notice - >> a=1; %not displayed >> b=2, %displayed b = 2

más de 2 años ago | 0

calculate std and mean for multiple variables automated
Observe - >> input=rand(10,5) input = 0.8147 0.1576 0.6557 0.7060 0.4387 0.9058 0.9706 0.0357...

más de 2 años ago | 1

Accessing table variables in a class method
Here is an example to demonstrate that accessing tables by variable name works fine with value classes. Subclassing from 'handle...

más de 2 años ago | 1

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How to curve fit an equation with sigma function
C = polyfit( sqrt( x.^2+y.^2) , Z, N)

más de 2 años ago | 1

How can i determine the area in percentage of a clustered image?
Divide the membership of each cluster by the total number of pixels.

más de 2 años ago | 0

Dimension of arrays being concatenated are not consistent.
Some things you urgently need to learn: https://www.mathworks.com/help/matlab/ref/dbstop.html https://www.mathworks.com/help/m...

más de 2 años ago | 1

Plotting points in style [x1,y1] , [x2,y2], [x3,y3] and them plot all of them?
No, but you can certainly write your own wrapper for any of the plotting functions to give you the input syntax that you want.

más de 2 años ago | 0

Index exceeds array bounds
The only solution: https://www.mathworks.com/help/matlab/matlab_prog/debugging-process-and-features.html#responsive_offcanvas

más de 2 años ago | 0

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hi every one, i need to ask a question, thank you
A=double(A); A(logical(A))=B;

más de 2 años ago | 0

Question

Can symbolic vectors (not vectors of symbols) be defined and manipulated in the Symbolic Math Toolbox?
I would like to define symbolic functions that are functions of vector-valued quantities, like syms A x f(x)=x.'*A*x where A ...

más de 2 años ago | 1 answer | 0

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Why does skeletonization sometimes reduce horizontal rectangles to single pixels?
Remember what bwskel is doing. It is peeling the outer pixels of the rectangles like an onion over and over again until it reach...

más de 2 años ago | 0

Translation for an ellipsoid ?
Is there anyway to do this such that later on I need the coordinates of the rotated followed by translated ellipsoid. You can d...

más de 2 años ago | 0

Question

Nested Functions versus Global Variables
Why are nested functions better for sharing variables between workspaces than global variables? There doesn't seem to be much di...

más de 2 años ago | 1 answer | 0

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scatteredInterpolant in nonlinear system
In the first global declaration, etac is missing from the list. global Hm pe1 pe2 pe3 etae2 etae3 qmax1 qmax2 qmax3 %<--- add...

más de 2 años ago | 0

Why does fplot think my function is not vectorized
Here's a workaround to trick fplot into doing the right thing.

más de 2 años ago | 1

Correspondence between intrinsic axes and world axes for imref objects
Or is it j,i, and k like with meshgrid? It is this one, sad to say. You can check it like this M=50; N=40; P=30; ir = imref...

más de 2 años ago | 0

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put number in cell
B=~cellfun('isempty',A)*0.2

más de 2 años ago | 0

I definitely don't get all zeros with imread. Problem solved? >> nnz(imread('C0039_100122_INDS.png')) ans = 4624 ...

más de 2 años ago | 0

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FFT, IFFT and phase shifting
Is this what you want Xf=fftshift(fft(y)); f=fs.*((0:N-1) -ceil((N-1)/2))/N; subplot(2,1,2) stem(f,abs(Xf)/length(y)); ti...

casi 3 años ago | 0

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Branching points problem in binary image
[I,J]= find( bwmorph(BW,'branchpoints') );

casi 3 años ago | 0

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How do I replace missing data with other values?
isnan is the correct way to detect and replace nans. Rn=radi; Rn(isnan(radi))= ---- something else ----

casi 3 años ago | 0

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How can I register or rotate series of image in matlab
imregister or imregtform seems like a good choice.

casi 3 años ago | 0

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parallel computation for a for loop
parfor pi=1:NP*kkk Tempo1 = zeros( p(pi) ,1 ); Tempo1_M = zeros( p(pi) ,1); Tempo2 = zeros(q(pi) ...

casi 3 años ago | 0

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How to Hybrid two median filters
out = medfilt2(medfilt2(yourImage))

casi 3 años ago | 1

fitting a funciton with minimax error
Consider using fminimax.

casi 3 años ago | 1