Answered
Derive function handle with a vector input argument
If you have the Deep Learning Toolbox, you can do automatic differentiation of vector-valued dlarrays, p=1:15; x0=dlarray(rand...

2 years ago | 0

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how to make a region on a face of 3D geometry
Sounds like very elementary applications of patch and text.

2 years ago | 0

Discussion

3D polyshapes
Is there a reason for TMW not to invest in 3D polyshapes? Is the mathematical complexity prohibitive?

2 years ago | 2

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How do I create an offset buffer around an alphaShape?
Also, for learning purposes if anyone can offer an explanation to why alphaShape has so many functions but not a buffer function...

2 years ago | 0

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stacked bar chart for multiple persons doing multiple tasks
There are a few FEX offerings that make Gantt charts, e.g., https://www.mathworks.com/matlabcentral/fileexchange/74994-gantt-ch...

2 years ago | 0

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plotting a circle cap
Plotting a section of a circle over a particular angular range is easy. You just have to determine the range you need. R=2; t0...

2 years ago | 0

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Answered
Accessing and changing the Y-limits of multiple figures
datasets = 4; clear ax for n = 1:datasets data = randn(1,1000*n,4); f(n) = figure; % fig handles % plot his...

2 years ago | 1

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Answered
How to control the curvature of each edge when drawing graph object?
You do not have any direct control over how the edges are drawn. You do have control over the X,Y postiions of nodes, however, s...

2 years ago | 1

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Find interpolated intersection points between two curves
There are a number of FEX contributions that do this, e.g., https://www.mathworks.com/matlabcentral/fileexchange/11837-fast-and...

2 years ago | 0

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Answered
Is there a Matlab built in function to determine the domain of a function?
Perhaps you are looking for assumptions? syms x assume(x>0); f(x)=log(x); assumptions(x)

2 years ago | 1

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Is it possible to concatenate sub-structures within structures into single variables?
A double nested loop could be used, e.g., for A=string(fieldnames(Struct1))' for B=string(fieldnames(Struct1.(A)))' ...

2 years ago | 0

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Answered
How do I find the interval in which a function is increasing ?
You would take the derivative and examine where the derivative is non-negative.

2 years ago | 1

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Keeping only rows in a matrix that are above a threshold
For example, subTable = yourTable( yourTable{:,9}>height_F, : )

2 years ago | 1

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Answered
Can't improve a near-zero training accuracy for sequence-to-label 1D CNN over a signal datastore
As far as we can say, you've only tried a single combination of training hyperparameters. You need to explore different combinat...

2 years ago | 0

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Updating Structure Input for Functions
If you had as follows, it would work for any fruit, wouldn't it? fruit.Mass = 0.15; %kg fruit.Height = 4; %m

2 years ago | 0

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How do I repetitively shuffle elements in my matrix column-wise?
F=magic(5) [m,n]=size(F); [~,I]=sort(rand([m,n])); J=repmat(1:n,m,1); Fshuffle = F(sub2ind([m,n],I,J))

2 years ago | 0

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Answered
Very weird Dot indexing is not supported for variables of this type
You have only passed 3 arguments to DetailGroup when it expects 4. Therefore, it is trying to do operations in which the double ...

2 years ago | 0

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The “fmincon” function did not achieve the result I wanted
clc, w0 = rand(1,5)/5; Aeq = ones(1,5); beq = 1; lb=zeros(5,1); ub=lb+1; tol=1e-14; opts=optimoptions(@fmincon,'StepTo...

2 years ago | 0

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Answered
What is the best way to add empty rows to an existing table, to pre-allocate for more data?
T = table(["One"; "Two"; "Three"], [1; 2; 3], ['the'; 'cat'; 'sat'], {{1 2 3}; {4 5 6}; {7 8 9}}) newlength=10; T(newlengt...

2 years ago | 1

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Answered
Determine in what interval a variable is
Use discretize. ElapsedTime = [0.13 0.35 0.74 1.02 1.39 1.80 2.50]; t = 0:0.01:ElapsedTime(end); phases = discretize(t, [...

2 years ago | 1

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Answered
How to get the value of slopes of pchip at the enpoints?
You don't need to determine the end slopes to extrapolate X. Just use the 'extrap' option to obtain values where desired outsid...

2 years ago | 0

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A Maximum Likelihood estimation with fminunc
Is perhaps the 'quasi-newton' algorithm the wrong choice for a log-function? More likely, the solution is correct, but your ex...

2 years ago | 1

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the directed graph of USA
You can download spatialgraph2D, https://www.mathworks.com/matlabcentral/fileexchange/73630-spatialgraph2d G=digraph([1 2 3],...

2 years ago | 0

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Questions about operation A\B
See flowchart here, https://www.mathworks.com/help/matlab/ref/mldivide.html#bt4jslc-6

2 years ago | 0

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What's the point of 'isinf' function ?
For one thing, it covers cases were the inf elements have mixed signs, thus avoiding the overhead of additional operations like ...

2 years ago | 0

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I have a 64*64 block matrix, each block of size 4*4. I need to extract the diagonals of each block as a vector.
A faster method is to use this FEX download, https://www.mathworks.com/matlabcentral/fileexchange/115340-block-transposition-pe...

2 years ago | 0

Answered
How to know how many pixels are a millimeter in my image?
You need to know the length in millimeters of a particular object or feature in the image to make that conversion.

2 years ago | 0

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Why does fmincon give me wrong results?
The problem has a very simple analytical solution. Why use fmincon at all? [fval,i]=max(2*(x-1)^4, 2*(x+1)^4); dx=2*i-3; In...

2 years ago | 0

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Answered
Improving the efficiency of triple nested loop
It seems like you could just use bwdist, poresize = 2*max(bwdist(tiff),[],'all')

2 years ago | 1

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Error Network: Missing output layer
The "output layer" referred to by the error message doesn't refer to the final decoder in the network. An output layer is a spec...

2 years ago | 0