Answered
How can we increase/decrease the number of triangles in a triangulation that is created from a polyshape object?
To increase the number of triangles, you would have to add vertices along the edges, like in the following: p1= polyshape([0,0;...

3 years ago | 0

Answered
How to make the output size of imwarp the same as the input?
There is an OutputView input parameter that will let you control that, https://www.mathworks.com/help/images/ref/imwarp.html#bt...

3 years ago | 0

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Answered
Optimization to fit a curve to data (problem with the InitialPopulationMatrix)
Instead of x = 1:size(Data,2); perhaps try a more normalized range of x, e.g., x=linspace(0,1,size(Data,2))

3 years ago | 0

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Answered
Solving for different types of variables on large dataset with lsqnonlin
You could imoplement a nested optimization, with the outer optimization over a done with fminsearch while that over T can be don...

3 years ago | 1

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Answered
How to assign elements in a vector to an entry in a structure array variable?
You could also consider using a table instead, Names=["Jon","Phil","Bob","Gary"]'; T=table(Names,nan(size(Names)), 'Var',["N...

3 years ago | 0

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How to assign elements in a vector to an entry in a structure array variable?
You could also consider using dictionaries instead of a struct array, Names=["Jon","Phil","Bob","Gary"]; D=dictionary(Names,...

3 years ago | 0

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change outputlayer in layergraph object
For example, lgraph=layerGraph(regressionLayer) layers=lgraph.Layers; layers(end).Name='newName'; lgraph=layerGraph(la...

3 years ago | 0

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Answered
I have data in 3D array and I know indices in the first two dimensions. How do I collect all data without for loop?
One way Data(:,:,1) = [1,2,3 4,5,6 7,8,9]; Data(:,:,2) = [11,22,33 44,55,66 77,88,99]; idxRow = [1,1 ...

3 years ago | 0

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How to assign elements in a vector to an entry in a structure array variable?
But I want to avoid loops because my code is already within another large loop which is slow. When dealing with structs, there ...

3 years ago | 0

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Answered
Passing a variable constraint to fmincon
I think this is what you mean, for nn=1:N ynn=y(nn); FUN = @(x)((sqrt((x(1) - a)^2 + (x(2) - b)^2) + sqrt((x(1) - ...

3 years ago | 0

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Answered
Convolutional neural networ for classification problem with matrices instead of images
Since I'm dealing with .csv files i have to use the "tabularTextDatastore" command to create the datastore. No, just use an ima...

3 years ago | 0

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I'd like to remove variables (columns) containing specifc name
One way, idx=contains(T.Properties.VariableNames,"_B" | "_A"); %T is your table T(:,idx)=[];

3 years ago | 0

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Inverse of a matrix
%Fake input data B=rand(100); X1=rand(100,1); X2=rand(100,1); A=B*(X1+X2); %Now invert X2_recovered=B\(A-B*X1); norm(...

3 years ago | 0

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Answered
how can i extract features just before full connected layer : extract the features from the flatten layer
Use the activations command, act = activations(net,yourInput,14);

3 years ago | 0

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how can i extract features just before full connected layer : extract the features from the flatten layer
Convert the network to a dlnetwork and remove the last two layers. lgraph=layerGraph(net); lgraph(end-1:end)=[]; %remove outpu...

3 years ago | 0

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add image to legend label
The easiest way I can think of is to make several subplot axes, including one containing the line plot subplot(1,2,1); plot(1:5...

3 years ago | 0

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How to make variables stored in cell arrays always show up as data type and size instead of listing the elements?
I don't think there's any way to do it in the variable editor, but you can do it at the command line using this solution, https...

3 years ago | 0

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Answered
How do I exact all the indexes with a certain value?
Don't use a loop. Just do, marker = Inpt_RZ2_chn002.dat > 3; The logical vector marker already functions as an index vector, e...

3 years ago | 0

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Answered
I keep having an error pop up for line 5. I'm trying to output 'm' sample pairs based off of the PMF of randomized variables X and Y
Your Px vector has 9 values but your X vector has only 5. They are expected to be of the same length.

3 years ago | 0

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Answered
plot line with function but doesn't appear like i want
plot([0,3.758,10] , [5,0,-3],'-o','MarkerFaceColor','b'); hold on plot([0,0],[0,5],':b'); plot([10,10],[0,-3],':b');hold off ...

3 years ago | 0

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Answered
Using a class as a function handle
Your definition of g does not make use of the input x. Was it supposed to be defined as below? g = @(x) analiseSismica(sb(x),s...

3 years ago | 0

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Answered
Make two vectors equal with zero inserted in the missed location values of the small vector
V1=[1,2,3,4,1,2,3,4]; V2=[1,2,4,1,3,4]; n1=length(V1); for i=1:n1 if i>length(V2) V2(end+1:n1)=0;...

3 years ago | 0

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Answered
Convex set: Finding the A and b matrices from Ax=b when the points of the convex set is known.
If you only need to address the 2D case, then you can use this: function [A,b]=vert2ineq2D(a) %Finds the expression of a 2D co...

3 years ago | 0

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error while running graph=layerGraph(net)
Like I said, your 'net' is not one fo the types listed in the error message: net = googlenet('Weights','none'); net = La...

3 years ago | 0

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set first derivative equal to zero with some constant
should I put it a number rather than a alphabet symbol to get proper result? You should just use fzero The symbolic solutions f...

3 years ago | 0

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Common legend and axes using tiled layout
One way you can do it is with nested tiled layouts: TL=tiledlayout(5,1); %Outer layout t=tiledlayout(TL,2,2); %Inner layou...

3 years ago | 1

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fminunc undefined at initial points
It looks like there are some parentheses in the wrong place. I'm betting the cost was supposed to be, J = -( y'*log(tmp_sig...

3 years ago | 0

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Exclude some nodes from a 3D point cloud (select only neighboring nodes)
X=load('selection').selection; %shorten data name G=graph(pdist2(X,X)<=10); T=conncomp(G); [~,i]=max(histcounts(T,[uniq...

3 years ago | 0

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Answered
Adding fields of two different structs together
It would be a better to use a dictionary than a struct, part=dictionary(["x","y","z"],1:3); part("x")+part("z")

3 years ago | 0

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Answered
How to capture the view in volshow as an image?
I'm still interested as to whether or not there's a way to create an image in a figure of the current view so that you could uti...

3 years ago | 1