Answered
For matrix A you cannot do: A.^2(:)
You cannot apply ()-indexing to mathematical expressions, function calls, or literal constants, only to variables. So, in your c...

2 years ago | 1

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Answered
Piecewise Function (Toolbox Doesn't Work)
Why bother with symbolic math? Why not just plot as below? n=linspace(-2,5); f = @(n) (3*exp(-n).*sin(pi*n)).*(n>=0); plot(...

2 years ago | 0

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Answered
How to add colorbar using image data
I would guess maybe, colormap parula However, we really need to see the corresponding grayscale image to make an informed choi...

2 years ago | 0

Answered
How to remove surface segments produced with trisurf (based on delaunyTriangulation)?
You could use faceNormal to find which facet normals are sufficiently aligned with the z axes as to consider them part of the to...

2 years ago | 0

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Answered
What is the Distinction Between Answers and Discussions?
Answers is intended for seeking solutions to difficulties encountered by the OP in using Matlab. Discussions is not for solutio...

2 years ago | 2

Answered
How can I maximize a tiled layout in a live script?
TL=tiledlayout(3,1); Fig2=TL.Parent;

2 years ago | 0

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Answered
Hi, I am plotting surfaces and I want to connect them with interpolation, but I don't know how.
% Define the data as column vectors x1 = [0.001 0.055178 0.06313 0.071457 0.072486 0.089794 0.099338 0.099518 0.107103 0.1188...

2 years ago | 0

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Answered
Why does a griddedInterpolant use twice as much memory as the array of values that it's interpolating between?
I suspect that griddedInterpolant does not really consume twice what V consumes. I think it is just a quirk of whos(). Remember ...

2 years ago | 0

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Question

Assign a customized image to an icon on the Quick Access Toolbar
I have created two Quick Access Toolbar buttons that let me toggle between two desired Matlab Desktop layouts, one which arrange...

2 years ago | 1 answer | 1

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answer

Answered
When using the "fit" command with a startpoint vector, matlab will sometimes not fit the data and will instead just assume my startpoint is the best fit
Numerical problems are created when your T and X data are very different orders of magnitude. Change the units of your X to some...

2 years ago | 1

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Answered
save images inside a for loop at uneven intervals
If you don't know in advance which and how many loop iterations you'll be storing, it would be best to accumulate them in a cell...

2 years ago | 0

Answered
save images inside a for loop at uneven intervals
One way, Img=nan(M,N,a); Isubset=[10 47, 150,...,a] for i = 1:a B = some process % my image if ismember...

2 years ago | 0

Answered
Logic array changing when saving then loading .mat file
As @the cyclist says, we really need to be given steps to reproduce this. The only thing I can guess is that maybe you tried to ...

2 years ago | 0

Answered
Divide matrix in subgroups based on rows and columns
every 256 rows should be saved into a new variable (so in total 200 variables) I assume you mean you want them split up into ce...

2 years ago | 0

Answered
How to get input values for a known output value.
One possibility might be to use fmincon to search for a minimum norm solution, fun=@(Xp) norm(Xp).^2; nonlcon=@(Xp) deal([],...

2 years ago | 0

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Answered
Convert Quaternion to Euler angle extrinsically
Intrinsic euler angles can be converted to extrinsic euler angles just be reversing their order. EDIT: In other words, a Z-Y'-X...

2 years ago | 1

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Answered
Asking for Guidance to Weighted-Sum Multiobjective Optimization
Because your problems have such a simple quadratic form, I might just do a sweep over w1,w2 using quadprog. w1=linspace(0,1,60)...

2 years ago | 0

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Answered
How to find the coordinate of the point on (180) contour line when y(max)?
You could do the calculus, or use the Symbolic toolbox to help you. syms x y z(x,y) z=1000*(x.*exp(-x.^2-y.^1)); G=gradient...

2 years ago | 0

Answered
How to calculate the area between X-Axis, Y-Axis and the (60) contour line?
Using this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/74010-getcontourlinecoordinates x = 1:0.2:2; y...

2 years ago | 1

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Answered
How can i select variables which has same number at the end
You shouldn't have variables named that way. You should have a cell array T_Right_F{i}, and times{i} and should use indexing ...

2 years ago | 0

Answered
can I adjusting one vector according to another vector for plotting?
Given x,y for fitting, I=~isnan(x)&~isnan(y); p=polyfit(x(I), y(I),1)

2 years ago | 0

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Answered
Understanding higher dimension in MATLAB
In general, a=rand(M,N,P,Q) means that a will return a number when you give it 4 subscripts a(i,j,k,l) for any combination of ...

2 years ago | 0

Question

How to return a DAGNetwork to an editable state in deepNetworkDesigner?
I started with a layer graph lgraph and opened it in a deepNetworkDesigner, deepNetworkDesigner( lgraph ) The properties of th...

2 years ago | 1 answer | 1

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Answered
Using accumarray to sum all values associated with a given node
edges = [1 2; 2 3; 3 1; 2 4; 4 5; 4 1]; data=[0.276 0.679 0.655 0.162 0.118 0.333]; m=max(edges(:)); A=accumarray(...

2 years ago | 0

Answered
Using accumarray to sum all values associated with a given node
One way: edges = [1 2; 2 3; 3 1; 2 4; 4 5; 4 1]; data=[0.276 0.679 0.655 0.162 0.118 0.333]; G=graph(edges(:,1), edg...

2 years ago | 0

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Answered
How do I plot one curve top on the other in the same figure?
Use subplot or tiledlayout. H(1)=openfig('fluence noneuqib.fig'); ax1=gca; H(2)=openfig('fluence ttm new.fig'); ax2=gca; ...

2 years ago | 0

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Answered
how to change zero in series number
y=[0 2 3 5 1 6 0 0 3 4 7 2 0 6 2 ] y(y==0)=nan; out=fillmissing(y,'next')

2 years ago | 1

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Answered
What is the difference between the 1st order polynomial fit and linear regression?
They are the same. You are just plotting the polyfit result incorrectly, load xy_ask.mat x y clf; plot(x,y,'o'); hold on x0=0...

2 years ago | 3

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Answered
Determine intersection between plane and polyhedron
Use intersectionHull() from this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/30892-analyze-n-dimensional...

2 years ago | 0

Answered
how to calculate tangent between circle and polynomial (from curve fit)
The equation for the tangent to the polynomial is y=m(x1,y1)*x+b(x1,y1) where m(x1,y1) and b(x1,y1) are a function of the tange...

2 years ago | 0

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