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Matt J


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Professional Interests: medical image processing, optimization algorithms PLEASE NOTE: I do not read email sent through my author page. Please post questions about FEX submissions in their respective Comments section.

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Réponse apportée
Plotting fit lines on multiple sets of data in one plot - how to limit each of the fit lines start and end points?
From the documentation: plot(cfit,x,y) plots cfit together with a scatter plot of the data in x and y. The axes limits are give...

1 jour il y a | 0

Réponse apportée
fmincon solver for nmpc applications
FMINCON's sqp algorithm does not accept a HessianFcn parameter. You would need to switch to either trust-region-reflective or in...

3 jours il y a | 0

Réponse apportée
Can I return the xml string from writestruct?
You can't suppress file output, but you can use readlines and writelines to retrieve the file contents in string form and then m...

3 jours il y a | 0

| A accepté

Réponse apportée
Handling outliers in Spray Angle calculations
This is one way you might clean things up: fnames={dir('*.bmp').name}; Bcell=cellfun(@cleanUp,fnames,'uni',0); tiledlayout(...

4 jours il y a | 1

Réponse apportée
Graceful exit from a parfor loop
It sounds like a job for onCleanup.

14 jours il y a | 1

| A accepté

Question


gpuArray support for Optimization Toolbox solvers
I have wondered for a while why the OptimizationToolbox doesn't currently support gpuArray data types in its solvers (lsqnonlin,...

21 jours il y a | 1 réponse | 2

1

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Input image rescaled to 0-1 using im2single for ImageNet models, will that result in wrong outputs?
Yes, probably. For all of these networks, the input layer normalization settings are 'zerocenter', which is not a scale invarian...

24 jours il y a | 0

| A accepté

Question


Sparse gpuArray indexing limitations
When trying to extract a sub-matrix of a sparse gpuArray, I get, >> S=gpuArray(sprand(100,100,0.1)); >> S(1:5,1:5) Sparse gpu...

26 jours il y a | 2 réponses | 0

2

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Réponse apportée
Pagemldivide returns incorrect results for complex gpuArrays
Looks like a bug to me. I would report it. Test Data Acpu=randn(20,10,2)+1j*randn(20,10,2); Bcpu=randn(20,10,2)+1j*randn(20,1...

29 jours il y a | 0

| A accepté

Question


Does A(m:n) trigger the explicit creation of an index array (m:n)?
I was under the impression that in an indexing expression A(m:n) when A is a numeric vector, Matlab was smart enough to optimize...

environ un mois il y a | 1 réponse | 0

1

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Réponse apportée
No more machine transfers available
If you're a license administrator, you can deactivate one of the installations from the License Center.

environ un mois il y a | 0

Question


Has save() bug been fixed?
I have a user-defined object that is failing to save in R2024b, >> save testsave mgr Warning: Variable 'mgr' was not saved. Fo...

environ un mois il y a | 1 réponse | 0

1

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When does distributing data improve computation time over overhead expense?
Are your parallel workers all on a single computer, or are they distributed across a cloud? If all of this is on a single comput...

environ un mois il y a | 0

Réponse apportée
How is the spectralConvolution1dLayer forward computation process performed
According to the doc you referenced, the convolution is performed with respect to the time dimension in that case, For time ser...

environ un mois il y a | 0

Réponse apportée
How to enable viewing workspace variables when hovering
If you upgrade to R2026a, you can recover the capability of viewing variable content in edit mode (in addition to debug mode). A...

environ un mois il y a | 0

| A accepté

Réponse apportée
Overwriting table columns with ()-indexing
Apparently, complete replacement of table columns can't be done via direct subsasgn indexing, so here is a function that will do...

environ un mois il y a | 0

Réponse apportée
Comma-separated assignment to a table variable
According to Tech support, it is not a bug, just something that wasn't implemented for tables. However, they see it as a legitim...

environ un mois il y a | 1

| A accepté

A soumis


Custom deep learning layer: function with learnables
A custom deep learning layer, similar to functionLayer() but with learnable parameters.

environ un mois il y a | 1 téléchargement |

0.0 / 5

Question


How does numArgumentsFromSubscript work?
As an exercise, I am trying to overload the subsref method in my user-defined class myclass to support the assignment expression...

environ un mois il y a | 1 réponse | 0

1

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Question


Comma-separated assignment to a table variable
The code below tests assignment by comma-separated expansion to a cell array in 3 different scenarios. In the specific case when...

environ un mois il y a | 2 réponses | 0

2

réponses

Question


Make memoized function calls recognize equivalent input sequences (and so avoid redundant cache entries)
In the demo below, we see that the memoized function func() executes twice out of the three times it is called. Ideally, it woul...

environ un mois il y a | 1 réponse | 0

1

réponse

Question


List all memoized function caches
I know that clearAllMemoizedCaches will clear all memoized function data, but what if I just want to list all existing memoized ...

environ un mois il y a | 2 réponses | 0

2

réponses

Question


Overwriting table columns with ()-indexing
Suppose I have two tables, T1=array2table(rand(5,3)) T2=array2table(char(randi([65,90],5,3)),Var={'Col1','Col2','Col3'}) ...

environ 2 mois il y a | 3 réponses | 2

3

réponses

Réponse apportée
Please help me to solve two nonlinear algebraic equations
syms L1 L2 eq1 = b5*L1^2 + (b9 + b7)*L1 + ... b6*L2^2 + b10*L2 + b8 == 0; eq2 = b27*L1^4 - b32*L1^3 + b33*L1^2 - b3...

environ 2 mois il y a | 0

Réponse apportée
Innerjoin when a table contains user-defined objects
Attached is a possible workaround. load testdata tableInner(Tleft,Tright)

environ 2 mois il y a | 0

Question


Accessing a single GPU from different workers of a parpool thread pool
It used to be conventional wisdom that parfor does not play well together with gpuArray on a single-GPU system because differen...

environ 2 mois il y a | 1 réponse | 0

1

réponse

Question


Innerjoin when a table contains user-defined objects
I have two tables that I wish to innerjoin() according to the topThick and botThick columns, which are the same in both tables. ...

environ 2 mois il y a | 2 réponses | 0

2

réponses

Réponse apportée
every restart of Matlab path is lost
If you don't want to make the path permanent (using savepath), you can use a startup script to set the path at the beginning of ...

environ 2 mois il y a | 1

Réponse apportée
Possible to use box or violin plots, with unequal x and y axis spacing?
clear; close all, clc %%Instrument A yA=(1:9)*0.1; xA=randn(2*60, numel(yA))+15; %%Instrument B yB=[0.5,1]; xB=r...

environ 2 mois il y a | 0

A soumis


Customized text modification buttons for the Matlab Editor
A pair of functions enabling simple, programmatic modification of Matlab Editor text. These can be used to make customized butto...

environ 2 mois il y a | 1 téléchargement |

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