# Catalytic

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How to distinguish pressing cancel vs entering an empty string in inputdlg?

You could also do this - while badFileName == true attemptsLeft = num2str(5 - errorCounter); outputName = inputdlg([...

16 hours ago | 0

Solve ill-conditioned linear systems

If b has no noise in it, you could try normalizing the rows of A a=vecnorm(A,2,2); A=A./a;b=b./a; x=A\b;

11 days ago | 0

How do I export a matlabb app?

It should be enough to give them the .mlapp file.

11 days ago | 0

| accepted

How do I put a uitable in a tiledlayout?

Must it be a table that the user can modify interactively? If not, then you could use the attached non-UI version of uitable (co...

17 days ago | 0

| accepted

Normalising multiple columns of a matrix to a fraction of its maximum value

Data=normalize(Data,1,'norm',inf)

25 days ago | 0

Use of tensorprod function to compute multilinear forms

res=A; for i=1:ndims(A) res = tensorprod(res,v,1); end res

25 days ago | 0

Error Using Reshape in MATLAB

By checking the size of "decoded_low" in line 26. You will see that it does not have the same number of elements as lenna_gray.

2 months ago | 0

Optimization of parameters in template matching

cost = interp1( -simvals, t_min,'cubic');

2 months ago | 1

how can i stop this while loop? it doesn;t finish

if abs( out.soc_fin(end)-soc_target ) <= 1.5

2 months ago | 1

Class property validator reports an error if no default value is set

classdef MyClass properties WriteFunc end methods function obj = MyClass(varargin) ...

2 months ago | 1

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; ...

2 months ago | 0

| accepted

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...

2 months ago | 0

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...

2 months ago | 0

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...

2 months ago | 0

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...

3 months ago | 0

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(:,...

3 months ago | 0

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 ...

3 months ago | 1

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...

3 months ago | 1

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])...

4 months ago | 0

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...

4 months ago | 2

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;

4 months ago | 0

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.

4 months ago | 1

| accepted

Finding Transformation Matrix of a viewer3d object

Maybe you could use estimateCameraParameters using a list of hand-picked points.

4 months ago | 1

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

4 months ago | 0

| accepted

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 =...

4 months ago | 0

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...

4 months ago | 1

How can the data be accurately clustered?

Maybe clusterdata would be useful. It has lots of different algorithmic options you could try.

4 months ago | 0

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 ...

4 months ago | 0

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...

4 months ago | 1

| accepted

error Unrecognized function or variable help me please :(!

signalsCell=load('signals').signals; PlotSignal(signalsCell, 3) function PlotSignal(signalsCell, n) Headings=signals...

4 months ago | 1