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Hiro

MathWorks

Last seen: Today |  Active since 2019

DISCLAIMER: Any pieces of advice or opinions posted here are of my own, and in no way reflect that of MathWorks.

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Answered
Save .fig and .jpg to folders selected earlier
I would add some more code in the MatlabFigureSaveLocationButtonPushed function as follows: saveFileName = "myFileName"; savef...

3 days ago | 1

Answered
the error of 'Matlab can only run a file with a valid name'
Please make sure you have that file on the PATH or in the current working directory. In the case the file exist somewhere else ...

3 days ago | 1

Answered
Grad-CAMで「リダクション層の活性化の勾配がすべてゼロです」とエラーがでますが、どう対処すればよいでしょうか？
gradCAM(net,x,categorical) の部分の、categorical を何か指定されていますか? 分類問題かなと思いますが、クラスラベルを指定してください gradCAM(net,x,"cat") 因みに、cellfun 無しでデー...

6 days ago | 0

Answered
LSTMネットワークが過学習を起こしているときの対応
<< 過学習について>> 過学習というのは、"ここにあるように" 訓練誤差が小さくなって行き、汎化誤差が大きくなっていっている状態を指します。状況について一般的な解釈をここではさせていただきます： 損失値が小さくなり、その後横ばい: 学習が進んでいませ...

11 days ago | 0

Answered
while and for loop
Let me remove the original idea as I did not think it was a homework ... sorry. input("msg") is useful. You can use it.

23 days ago | 0

Answered
Pressure Intensifier, The example shows how to model, parameterize, and test a pressure intensifier in examples section of simulink
Of course yes. Why don't you try this: which sscfluids_pressure_intensifier -all If this returns the path to the code, it mea...

26 days ago | 0

Answered
I want to plot selected data from rows and columns
Let me use the ulr info like @KSSV @Torsten did!! Here you are: data = readtable("https://www.mathworks.com/matlabcentral/answ...

26 days ago | 0

Answered
Pressure Intensifier, The example shows how to model, parameterize, and test a pressure intensifier in examples section of simulink
I wonder if you have the corresponding Toolbox; in this case it is Simulink Fluid. Check and see if Simulink Fluid is available...

26 days ago | 0

Answered
学習曲線において精度の意味
恐らく悩んでいるポイントは、時系列のデータを"全部並べて学習する"のと、"分けてそれぞれ学習する" ことで結果が異なるのは何故なのか？という事だと思うんですが、それで良いですか? そうだと仮定して、2つの場合で比較します： [全部並べて学習する] ...

27 days ago | 3

| accepted

Answered
predictAndUpdateState関数で時系列の予測をしていた時に起きた問題
predictAndUpdateState のオプションに "MiniBatchSize" というオプションがあります。このデータ数の単位で処理を実行します。デフォルトのサイズは 128 個です。この場合だと net = predictAndUpdate...

1 month ago | 0

Answered
runge kutta for 2 order ODE
Let us assume that and re-write the problem as follows: Let's transform it so it can be used in an ode setting: These a...

1 month ago | 0

Answered
is matlab 'fit' function changing behavior ?
There are actually many "fit" functions avaiable within MATLAB. MATLAB determines which "fit" function to use based on the type...

1 month ago | 0

Answered
Take number from excel in App Designer
readcell returns a "cell" value but not a double scalar. This is where you made a mistake. Let me convert cell to double. Firs...

1 month ago | 0

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Answered
Adjust the color bar of all thermal images to be consistent
You can control the range of colorbar with clim: [X,Y] = meshgrid(-5:.5:5); Z = X.^2 + Y.^2; tiledlayout(1,2) % Left plo...

1 month ago | 0

Answered
二値化画像から主成分分析するにはどうしたらよいですか？
主成分分析 / KL 変換 はデータの集合に対して、その集合の情報量 (分散) が大きくなる部分空間 (基底) を順番に探していく手法ですので、画像一枚からではそれは求まりません。画像を沢山あつめて、その画像から基底となる画像を見つけるイメージです。 ...

1 month ago | 1

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Answered
Docking button freezes Matlab R2022B
Hi, I am wondering if your OS meets the system requirement? https://www.mathworks.com/support/requirements/matlab-mac.html It ...

1 month ago | 0

Answered
How Can I Plot Multiple Points Without Mathlab Joining Them?
I would suggest that you should use Interactive Live Task for Plot. Even if you are not familiar with the syntaxes, you can eas...

2 months ago | 0

Answered
The easiest way to learn matlab?
I would reccomend the official training courses available both online and instructor-led manner. https://www.mathworks.com/lear...

2 months ago | 0

Answered
劣決定系の最小二乗解で使われる計算方法
において、A が横長で行がフルランクの場合、つまり で の場合を考える際には、通常は最小 L2 ノルム解を返すと思います。 教科書などを読めば、必ずと言っても良いほど出てくる話ですが、 として解きます。これは Lagrange の未定乗数法...

2 months ago | 0

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Answered
How to create a double entry table ?
Is this something like this?: B = table({'Michael';'Beverly';'Alice'},... [64;69;67],... [119;163;133],... [122 ...

2 months ago | 1

| accepted

Answered
subtitle command not working and no error
I gave it a try but it seems it is not working. Instaed, I found a similar question to yours and some solutions too here: https:...

2 months ago | 0

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Answered
Simultaneous lsqcurvefit for data set with shared parameters
Hope this helps you out: Problem-Based Optimization setup. This does not requires prior-knowlege on type of solver for your spec...

2 months ago | 0

Answered
CSVファイルの行列変換
それぞれの csv ファイルは readtable か何かでMATLAB に読み込んでいただいて、それらの行列成分を結合すれば良い訳です。例えば: m1 = rand(5) m2 = rand(5) m3 = rand(5) m1 - m3 を行列...

2 months ago | 0

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Answered
When using the Reinforcement learning Toolbox, can I calculate the mean and std of the datas in the experience buffer?
I haven't tried it before though, allExperiences seems to be the one you're seeking for. Hope this will help.

2 months ago | 0

| accepted

Answered
App Designer MATLAB: if-else condition not working
I found a solution for this. errordlg is not suitable for App Designer; you should use uialert instead. There is a small note a...

2 months ago | 0

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Answered
Do we need license for downloading Matlab runtime (r2022a (9.12) windows 64 bit)
No, you don't. It's free of charge.

2 months ago | 0

Answered
Is there a way to show command shell in textarea of app designer?
Do the options defined in trainingOptions function, Verbose or Verbosefrequency help here?

2 months ago | 0

Answered
I have trouble understanding the command.
You should have a good understanding on eval by going through this. What it does here is that [esty, seout] = fun(tpar,tx); I...

2 months ago | 0

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Answered
Which part is incorrect?
I would do this much more simply: mat = [1,1,0,0,0; 1,1,1,1,0; 1,0,0,0,0; 1,1,0,0,0; 1,1,1,1,1]...

2 months ago | 0

Answered
App Designer MATLAB: if-else condition not working
What is the default value for app.StatebuttonButton.Value? Have you checked it in the first place? If it is "1", it always skip...

2 months ago | 1

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