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Matt J


Last seen: Today 自 2010 起处于活动状态

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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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已回答
does installing toolbox that has different version than your matlab program cause a problem
Yes. I don't think it's even possible to install a toolbox version that doesn't match your core Matlab version.

6 hours 前 | 0

已回答
Why is the menu bar background white?
You could also upgrade to R2025. There, the menu bar is grey (or at least not as white) and you can also render figures in da...

1 day 前 | 0

已回答
Why is the menu bar background white?
especially when you develop a code with a GUI For GUIs, you can use uimenu, which still produces a grey menu bar.

2 days 前 | 0

已回答
Calculate mean and standard deviation from 30-years of global wind data
This might be what you are looking for, subs=[lat(:),lon(:),year(:)]; val=wind(:); siz=[180,360,30]; meanWind = acummarray...

8 days 前 | 0

| 已接受

已回答
Install and work with ResNet-50 Network pretrained
Install by opening deepNetworkDesigner and selecting ResNet-50 You can then use imagePretrainedNetw...

8 days 前 | 0

| 已接受

已回答
Trying to normalize a matrix across all element values.
Normalize across only non-zero elements, or across elements only in the upper triangle? If the latter, then, A=[ 0 54 0 ...

8 days 前 | 0

已回答
Issue with Blockproc when using PadPartialBlocks
Integer types cannot hold NaN values, so you will have to convert your int8 input to floating point: load('ImgForBlockProcQ...

8 days 前 | 1

| 已接受

已回答
Why does specifying the size of a class property slow down writes?
The property validation specifications have to be processed every time you make an assignment to the buffer property. This takes...

9 days 前 | 0

| 已接受

已回答
Issue with Blockproc when using PadPartialBlocks
what am I doing wrong? Nothing you've shown us currently. The border values will/should be NaNs as you expect. J = blockproc(r...

9 days 前 | 0

已回答
Suppress real part of complex number for cleaner display
ys_abc = inv(zs_abc) str = formattedDisplayText(imag(ys_abc) +"i"); disp( erase(str ,'"') )

11 days 前 | 0

| 已接受

已提交


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...

13 days 前 | 2 次下载 |

0.0 / 5

已回答
Transition point discontinuity (cliff/spike) in plots of solved system of non linear equations.
I find it strange that you are using fsolve for a 1-variable problem, rather than fzero. You don't show the objective function, ...

18 days 前 | 0

已回答
Create help for method with arguments
The Quick Access Toolbar function favoriteArgs2Help.m, now available in this FEX submission, https://www.mathworks.com/matlabce...

19 days 前 | 0

| 已接受

已回答
splitapply does not retain ME stack
Run with Pause on Errors. Then the code will stop at the offending line:

20 days 前 | 0

已回答
Effect of GA Parameters on Convergence
You need to look at the final fval achieved as a function of N. If the irregular solutions have a lower fval than the regular so...

21 days 前 | 0

已回答
How to change the size / ratio of a figure
Perhaps as follows? axis tight dx=diff(xlim); dy=diff(ylim); xmax=dy/(9/11)/2; xlim([-xmax,+xmax])

24 days 前 | 0

已回答
solving a system of linear equations where A is a 40*40 sparse matrix
You should use \. It's not just about precision, though. It's also about speed: A=sprand(400,400,0.2)+speye(400); b=rand(400,1...

24 days 前 | 1

已回答
Is the Order of Function Evaluation Guaranteed when Function Outputs are Concatenated into an an Array?
This reasoning might not be bulletproof, but I think the order of funtion calls in any expression has to always go left to right...

26 days 前 | 0

已回答
Calculating 6D Estimation (3 Translations and 3 Rotations) from Two Orthogonal Detectors Output ((X, Y, Thea, Roll)
Spreaking for myself, the provided Fig1.png does not help me understand how a 6DOF 3D pose maps to a 4DOF projected pose (X, Y, ...

26 days 前 | 0

已回答
Unable to move editor pane to rightmost column
One way is to right-click on the command window bar and select the appropriate option from "Move Command Window": ...

28 days 前 | 0

已回答
Use of matlab.apps.AppBase outside of AppDesigner
It's not clear why you would need to migrate away from them if they do what you want. If you need a deeper understanding of what...

28 days 前 | 0

提问


Mixing name/value pair syntax
In a Matlab seminar a few years ago, I asked why function calls that mix old style and new style name/value pair syntax would on...

29 days 前 | 2 个回答 | 2

2

个回答

已提交


arrayfun with scalar expansion
Version of arrayfun which allows argument arrays to have different sizes, so long as they are compatible for scalar expansion.

29 days 前 | 1 次下载 |

0.0 / 5

Discussion


Would comma-separated list expansion for non-cell arrays be a good thing?
Frequently, I find myself doing things like the following, xyz=rand(100,3); XYZ=num2cell(xyz,1); scatter3(XYZ{:,1:3}) Bu...

29 days 前 | 0

提问


Would comma-separated list expansion for non-cell arrays be a good thing?
Frequently, I find myself doing things like the following xyz=rand(100,3); XYZ=num2cell(xyz,1); scatter3(XYZ{:,1:3}) But...

29 days 前 | 0 个回答 | 0

0

个回答

提问


Performance of MEX versus builtin functions
When Matlab calls a MEX file, is there overhead that makes the call slower as compared to a built-in binary like min, max, etc.....

1 month 前 | 1 个回答 | 0

1

个回答

已回答
Putting spaces between elements of a string/
A=['011001110000' '101111000000' '110100011000' '011010001100' '010101000110' '110010100010' '1000010100...

1 month 前 | 1

已回答
Implicit expansion with arrayfun (cpu vs gpu)
Remember that arrayfun (on the CPU) is nothing more than an M-Code for-loop in disguise. Therefore, it is not hard to write your...

1 month 前 | 1

| 已接受

已回答
Implicit expansion with arrayfun (cpu vs gpu)
I agree it is confusing, but the gpuArray version of arrayfun was never intended as a direct analgoue of the CPU version. Additi...

1 month 前 | 1

已回答
How to prevent image cropping after registration?
The problem is my fixed image only covers the top half of the head whereas I want the output to contain the whole head. But th...

1 month 前 | 0

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