Answered
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...

1 year ago | 1

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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.

1 year ago | 0

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

1 year ago | 0

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

1 year 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 ...

1 year ago | 1 answer | 0

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Answered
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...

1 year ago | 0

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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...

1 year 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...

1 year ago | 1 answer | 0

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Answered
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...

1 year ago | 0

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

1 year ago | 1

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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...

1 year ago | 0

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

1 year ago | 0

Answered
How to read images with positive integer? No imead()
I definitely don't get all zeros with imread. Problem solved? >> nnz(imread('C0039_100122_INDS.png')) ans = 4624 ...

2 years ago | 0

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Answered
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...

2 years ago | 0

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

2 years ago | 0

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Answered
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 ----

2 years ago | 0

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

2 years ago | 0

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Answered
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) ...

2 years ago | 0

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

2 years ago | 1

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fitting a funciton with minimax error
Consider using fminimax.

2 years ago | 1

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Error using trainNetwork. Unable to read file.
I think it is expecting more traditional types of image files like .jpg,.png, etc.. I think for .mat you need to specify a speci...

2 years ago | 0

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Answered
How to use a for-loop to find the onset (first element) of trials of zeros, ones and twos, in an array of sequences of zeros, ones and twos
No, we're not going to do your homework for you. Go away and leave us alone.

2 years ago | 0

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Rotation of the circle (points)
Just add an increment to the th th = linspace(0,2*pi,10) + rotation_angle ;

2 years ago | 0

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Answered
Multiply and shift ?
R = ifftshift(xcorr(x,'unbiased'))

2 years ago | 1

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FFT Peak at Zero
Apply fftshift to your spectrum to see it with DC centered in the plot. x=csvread('230.csv',1,0); rollSpectrum=ffts...

2 years ago | 2

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Solving compound linear optimization problem
I've never heard of a compound optimization problem but maybe this will help https://www.mathworks.com/discovery/multiobjective...

2 years ago | 1

Question


Is this a bug in lsqcurvefit?
When I run this simple test of lsqcurvefit (this is R2018a), I get errors. opts=optimoptions(@lsqcurvefit,'SpecifyObjective...

2 years ago | 0 answers | 1

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Answered
invalid syntax at '=' . A '(' might be missing a closing ')'
if (f == 0) and same thing in this line if(~isinteger(NMAX) || NMAX == 0 || ischar(NMAX))

2 years ago | 0

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Answered
How to save vectors with different lengths
One way is to use cell arrays C={1,[2,3],[4,5,6,7]}

2 years ago | 0

Answered
fitting 2 variable function to (x-1) form
My fit is completey messed up, and it looks nothing like the data. It shouldn't look like the r and eta data, because that's no...

2 years ago | 1

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