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How can I use the returned sort index from the sort() function on a multidimensional array?
The easier way would be to use the attached modification of sort() which will simply return the output indices as lienar indices...

mehr als 2 Jahre vor | 1

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Loop around a toolbox
This runs: for N = 40:42 %<---shortened Daten=rand(N);%<-----added v = [1]; m = zeros(1,N); for n ...

mehr als 2 Jahre vor | 0

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app class properties check
I imagine that you could define your own property validation function, https://www.mathworks.com/help/matlab/matlab_oop/propert...

mehr als 2 Jahre vor | 1

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Using Linear indicies to create new image
stats=regionprops(BW,'PixelIdxList'); Z0=false(size(BW)); for i=1:numel(stats) Z=Z0; Z(stats(i).PixelIdxLi...

mehr als 2 Jahre vor | 0

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How to extract all values along the third axis of a 3d-array using a logical 2d-array?
a = rand(10,10); a(5,5) = 10; b = a+rand(1,1,1000); br=reshape(b,[],size(b,3)); c = br(a == 10,:)

mehr als 2 Jahre vor | 2

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How can I graph these two equations in matlab?
One way, f =@(y) (y-4).*(2*y-y.^2); fplot(f); xlabel y; ylabel f(y) and similarly with the other function.

mehr als 2 Jahre vor | 1

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Singular value decomposition, Cant get the final results
Since you are now on a more powerful computer with more RAM, perhaps you should also try doing the SVD without tall arrays. Re...

mehr als 2 Jahre vor | 0

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Common legend for each row of tiled layout
I could do nested tiled layouts, but that seems very cumbersome, especially when I have many more rows. Why? %% Make Layout Sk...

mehr als 2 Jahre vor | 1

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is there a way to perform this task w/o using loops?
There are ways to do it without loops, but doing it without loops will be of no benefit to you. It will take more lines of code,...

mehr als 2 Jahre vor | 1

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Draw angled ellipses around clusters on PCA plot
Using polyshapes: ellipse=rotate( scale(nsidedpoly(1000),[2,1]) ,30); plot(ellipse)

mehr als 2 Jahre vor | 0

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Draw angled ellipses around clusters on PCA plot
See also elliipticalFit from the FEX downloadable, https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-t...

mehr als 2 Jahre vor | 0

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How can I stabilize the matrix left division (i.e. "\")?
You cannot. You must regularize the problem somehow and make the matrix non-singular.

mehr als 2 Jahre vor | 0

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Solving a quadratic optimization problem subjected to linear constraints
You can use lsqnonneg, xi=[0, 0.25, 0.5, 1, 1.2, 1.8, 2]'; fi= [2, 0.8, 0.5, 0.1, 1, 0.5, 1]'; phi=@(r) max(0, 1 - r).^4....

mehr als 2 Jahre vor | 0

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Simple Indexing problem when creating a matrix
n=5; A=[0 60 120 180 240 300 360]; A=A+360*(0:n-1)'

mehr als 2 Jahre vor | 0

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how to project a contour along a surface plane?
This looks applicable: https://www.mathworks.com/matlabcentral/fileexchange/8589-contourz?s_tid=srchtitle

mehr als 2 Jahre vor | 0

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Find function misbehaves when Indexing into array
Perhaps this is what you meant, LogicArray = x < Tolerance; LogicArray(1:4)=false; FindIndex = find(LogicArray,1,'first')...

mehr als 2 Jahre vor | 1

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fmincon optimization: is the first order optimality very sensititve to changes in the step tolerance?
So given the results I show, can we qualititatively say that the objective is likely to be very flat at the solution? Or somethi...

mehr als 2 Jahre vor | 0

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optimize vector by fminimax
if with my first input i have this vector (output) (1 2 5 6 9 5) and with next input i have this one (1 2 9 6 9 1) as you can ...

mehr als 2 Jahre vor | 0

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How to get the distance references of geometry and curvature of the object?
I was able to do it with the help of some FEX downloads: https://www.mathworks.com/matlabcentral/fileexchange/90762-further-too...

mehr als 2 Jahre vor | 0

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Indexing matrix with multiplication
No. You can easily see they are not the same by comparing them yourself: T=randi(30,5) mask=T>20; T(mask) T.*mask

mehr als 2 Jahre vor | 1

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Access MinFeretCoordinates data in regionprop table
For example, stats{1,'MinFeretCoordinates'} stats{2,'MinFeretCoordinates'} stats{3,'MinFeretCoordinates'}

mehr als 2 Jahre vor | 0

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Complex Image Processing with closed contour
So, you have an image like this, load Image figure; imshow(Image) and you just want to keep the central part? Then threshol...

mehr als 2 Jahre vor | 0

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Inserting zeros into another array at values in the second array
A = [8 2 3 5 5 6 7 8 9]; B = [1 3 2 3]; F=nan(1,numel(A)+numel(B)); F(cumsum(B)+(1:numel(B)) )=0; F(isnan(F))=A

mehr als 2 Jahre vor | 1

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How to Remove Tail from Segmented Circle
This uses bwlalphaclose from this FEX download https://www.mathworks.com/matlabcentral/fileexchange/90762-further-tools-for-ana...

mehr als 2 Jahre vor | 1

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How to Remove Tail from Segmented Circle
Here is a similar tail-removal problem: https://www.mathworks.com/matlabcentral/answers/2035444-poor-results-for-neural-network...

mehr als 2 Jahre vor | 0

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How to calculate the Jaccard Index of two sets of points (x,y,z)
data1 = table2array(readtable('100 points.xlsx')); data2 = table2array(readtable('69296 points.xlsx')); jaccardIndex = heigh...

mehr als 2 Jahre vor | 0

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Identifying straight line & intersection with the curve from the binary image
load BWimage C=bwareafilt(BW&~imopen(BW,ones(1,8)),1); [I,J]=find(C); x=mean(J); y=max(I); %intersection coordinates ...

mehr als 2 Jahre vor | 1

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Do sfit and cfit objects carry the input x,y,z data? If not, why do they consume so much memory?
Never mind. I see now that the memory consumption is on ly 3.3KB, not MB. And I see from the test below that the data size does ...

mehr als 2 Jahre vor | 0

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Use reshape to isolate elements of kron product
You can use blkReshape from this FEX download https://www.mathworks.com/matlabcentral/fileexchange/115340-block-transposition-p...

mehr als 2 Jahre vor | 0

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Compute sensitivity coefficient from numerical gradient
I have no background in R. However, if you are trying to take the numerical gradient of a function, there is no native Matlab fu...

mehr als 2 Jahre vor | 0