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Catalytic


Last seen: Today Aktiv seit 2019

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  • Thankful Level 3
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  • 6 Month Streak
  • Knowledgeable Level 4
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Beantwortet
Class property validator reports an error if no default value is set
classdef MyClass properties WriteFunc end methods function obj = MyClass(varargin) ...

etwa 17 Stunden vor | 1

Beantwortet
How to use a matrix element to define a changing variable
Use a single '=' sign for assigning values, not '=='. if M(j,k)>0 p(j,k)=0.9; ...

etwa 18 Stunden vor | 0

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Beantwortet
Training with trainNetwork failed. The value of 'ValidationData' is invalid. The datastore used for 'ValidationData' must return a table or cell array 2 columns.with at least
Your ValidationData is just an arrayDatastore of input data. The error message has told you that it must include input and outpu...

etwa 18 Stunden vor | 0

Beantwortet
Root LP problem is unbounded
Nobody can help you troubleshoot the error, because it is not a coding error. It is an error of problem definition. You have pro...

9 Tage vor | 0

Beantwortet
multiple 3D plane plotting
planedip = [30, 60 90]'; planeazim = [120, 90, 270]'; center=[2,3,0; 6,8,0; 10 15,0]; dip_angle_rad = deg...

17 Tage vor | 0

Beantwortet
Loop through list of vectors (ie, the rows of a matrix), applying same "simple" function to each one, on GPU? Should I use arrayfun somehow?
It's hard to know exactly what's going on in your code, because every variable and function name has the string "measurement" i...

24 Tage vor | 0

Beantwortet
Delete Negative Duplicates from Array
X=rand(3,4); X=[X,-X(:,1)] [~,~,G]=unique([X,-X]','rows');; [N,~,bin]=histcounts(G,1:max(G)+1); bin=bin(1:end/2); X(:,...

24 Tage vor | 0

Beantwortet
Matrixes not multiplying correctly using for loops
One loop - [n,w]=size(a); [h,m]=size(b); if w~=h error('Inner dimensions do not agree.') end c=0; for k = 1 : w ...

30 Tage vor | 1

Beantwortet
Weird unexplainable results when fitting gaussian curve
Supply a better initial guess than what fit() defaults to - load data a0=max(y2) %initial a b0=x(find(y2==max(y2),1)) %in...

etwa ein Monat vor | 1

Beantwortet
How to find the span of a matrix in matlab?
Use orth and null, A = [-1 -5 -1 10 0 5; 1 5 0 -4 0 -5;2 10 -1 -2 -1 -7;-1 -5 2 -8 2 -1]; spanset=orth(A) rank([A,spanset])...

etwa 2 Monate vor | 0

Beantwortet
How to use GPU to speed up computation?
Using the GPU in conjunction with parfor will not be productive unless you have a multi-GPU system and assign each parpool worke...

etwa 2 Monate vor | 2

Beantwortet
Discretizing a column array, and performing operations on elements of another column array of the same length that lie in the same bins as the original one
I=findgroups(discretize(Z,edges)) ; S=sparse(I,(1:numel(I))', 1); S=S./sum(S,2); Fbinned = S*F;

etwa 2 Monate vor | 0

Beantwortet
Uploading .mat files that contain nested structs into a datastore
I think the wisest course would be to reorganize your data and assign each "Unit" to its own separate .mat file.

etwa 2 Monate vor | 1

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Beantwortet
Finding Transformation Matrix of a viewer3d object
Maybe you could use estimateCameraParameters using a list of hand-picked points.

etwa 2 Monate vor | 1

Beantwortet
How to restructure my objective function to optimise using genetic algorithm?
Follow this example - https://www.mathworks.com/help/gads/ga-nonlinear-constraint-problem-based.html

etwa 2 Monate vor | 0

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Beantwortet
Zeroing matrix elements outside of a certain range.
Zeroing the data will not exclude it from the average. You should use NaNs, data = [1;2;3;4;5].*ones(5,2).*[0.5,0.4] range =...

etwa 2 Monate vor | 0

Beantwortet
Scattered Interpolant in matlab
No. There is no such thing as spline interpolation or extrapolation when you are dealing with scattered data. It is inherently a...

etwa 2 Monate vor | 1

Beantwortet
How can the data be accurately clustered?
Maybe clusterdata would be useful. It has lots of different algorithmic options you could try.

etwa 2 Monate vor | 0

Beantwortet
How do I add transparency to a plot in the Live Editor?
I find that this makes the lines dim in the Live Editor, like they appear in your post - plot([0, 1],[0, 1; 1, 0], 'Color', [1 ...

2 Monate vor | 0

Beantwortet
Unable to find explicit solution in Lagrangian optimization
An analytical solution for 0<rho<1 is - A=[1 0; 0 1; -1 0; 0 -1]*E; [fval,i]=min(A*[p1;p2]); e1=A(i,1); e2=A(i...

2 Monate vor | 1

| akzeptiert

Beantwortet
error Unrecognized function or variable help me please :(!
signalsCell=load('signals').signals; PlotSignal(signalsCell, 3) function PlotSignal(signalsCell, n) Headings=signals...

2 Monate vor | 1

Beantwortet
difficulties using fmincon codes
however it still uses @SomnathsFunc2 i would be happy to exclude rather than this cant we direclty add that part in code rather ...

2 Monate vor | 1

| akzeptiert

Beantwortet
Get equation of the surface from curve fitting
I would like to get a mathematical function that describes the surface of the 3D space, so I can, given a N and phi, get a value...

2 Monate vor | 0

Beantwortet
Adoption of Name=Value in Function Calls what is best practice?
One situation where you have to stick with the old style anyway is when you want to pre-package your name value pairs in a cell ...

2 Monate vor | 0

Beantwortet
Create a node in the space between two nodes (A and B) and following the direction normal to a node (N)
A = [-25.5530 -185.3199 -211.6502]; B = [-25.4769 -185.6468 -211.2523]; N = [-25.4602 -185.4676 -211.6694]; C=(...

2 Monate vor | 0

Beantwortet
how to velocize it (avoid loop is possible)
I don't know if "velocize" (not a word) is supposed to mean "accelerate" or "vectorize". The two are not the same. If you're l...

2 Monate vor | 1

Beantwortet
How to add cell array as index in plot title
I suspect that the code you've shown us is not the code that produces the error. I suspect you did this instead - figure tlo =...

3 Monate vor | 0

Beantwortet
Which algorithm does SVD function take?
Comparing results showed that max difference in S and S1 reached 1e-14, but for U and U1 or for V and V1, max difference reached...

3 Monate vor | 2

Beantwortet
For matrix A you cannot do: A.^2(:)
A=[1 2;3 4]; sum(A(:).^2) vecnorm(A(:))^2 norm(A,'fro')^2

3 Monate vor | 0

Beantwortet
Identify the maximum values within fixed time intervals of a time series data set
Time=[4 5 6 7 8 9 10 25 26 27 28 29 46 47 48 49 50 58 59 60]; %Time vector, in minutes x=[ 0 5 0 1 3 11 2 0 0 1 8 3 0 0 -5 12 2...

3 Monate vor | 2

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