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Cross entropy error computation
I believe that can be easier: the function "classify" returns the label together with the probabilities for all the categories....

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Forecast for Reactive Power (HELP PLEASE!!!)
It seems you just copied everything from the documentation and changed the input data. I am just wondering if the training opti...

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How to solve this problem

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Filling in multidimensional array efficiently
repmat may solve your issue - check up the link: repmat function

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Is it possible to run specific lines from a different script?
You need to make the script as function and add the directory of the script to your path as follows: addpath(genpath("different...

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2D plote when x axis and y axis intersect at origin
Box on/off may work for you. https://jp.mathworks.com/help/matlab/ref/box.html

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Really slow to open variables
R2020b has some updates. The most recent one was updates 3. You should update your MATLAB then see if it mitigates the problem....

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Plot a 2D ,with accordance to the distance between the points
I hope I can give you some guide: s = A(:,1); t = A(:,2); weight = A(:,3); G = graph(s,t,weight); plot(G, 'EdgeLabel', G.Ed...

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Who can I use GPU to speed up my Matlab code?

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optimizing the steady state temperature of an MSMPR
I am not fully following your code but if you are using MATLAB R2020b (the latest), you should have "Task" in live editor. From...

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How can I fix this iteration script
All you need is add one more restriction on the top of the "while" loop. it = 0; % Počet iterácií while max(abs(U-UU))>eps ||...

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Calibrating the camera of smartphone
I suppose this one helps you out: https://jp.mathworks.com/help/vision/ug/single-camera-calibrator-app.html

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How to re-enable grayed out tool buttons?
Have you tried "dbquit"? https://jp.mathworks.com/help/matlab/ref/dbquit.html

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How to plot two vector solutions and relative error for 2-norm vector?
Does this fit to what you're looking for? https://jp.mathworks.com/matlabcentral/fileexchange/7470-plot-2d-3d-vector-with-arrow...

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Modifying legend entries in a figure
(1) Imagine that you've got 3 plots: yourplots = get(gca, 'children'); legend(yourplots([3 1 2]), {'3', '1', '2'}); you can s...

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matrix 1x3 as input for testing data after train the model in classification learner
yfit = FineKNN.predictFcn(testing); You should use this instead.

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Power Spectral Density from Time Domain Signal
There has been an improvement in that function: https://jp.mathworks.com/help/msblks/release-notes.html?s_cid=doc_ftr You shou...

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How can I determine if a matlab app is running as a web app?
Web apps run in your browser and stand-alone app opens your system window(s) and run in it (them).

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memory pca vs pcacov
In PCA, your matrix (p x q) will be once converted into the variance-covariance matrix (q x q). This would reqiure huge memory ...

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How do I make a function to make calculations within my matrix?
It seems like you have limited experience with MATLAB before? You should begin with MATLAB onramp (click here). I guess table w...

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1-classSVM の異常スコアについて
Kentaさんのおススメのカーネル多変量解析は非常に良い本です！ 流石です。 カーネル法を理解している、representer定理とか分かるという場合なら、当該書籍の該当ポイントを読めば「なるほどね」ということになりますが、最初から読み始めてP107のo...

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rlFiniteSetSPec の引数はInputの数では無く、実際に取り得る値を指定します actionが1つならば、それが取り得る離散値をベクトルで渡します actionが複数ならば、cellを使ってあり得る組み合わせのベクトルを渡します htt...

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train関数を使って学習させる場合は、episodeから都度変更することは出来ないと思われます。 agentOptions.EpsilonDecay % 減衰率 agentOptions.EpsilonMin % 最小のepsilon値 で非線...

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イメージを2Dガウス関数で曲面近似する方法

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LiveEditorを開いて、そこからライブタスクを探してみてください。 https://jp.mathworks.com/help/matlab/preprocessing-data.html?s_tid=CRUX_lftnav 前処理関係の各種タス...

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why does my code take so long to run?
It looks that your problem is not that complicated. Why don't you write your code without using symbolic expressions? I bet it i...

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optimal scheduling of household appliances
This example can be used for you application. https://www.mathworks.com/help/optim/ug/optimal-dispatch-of-power-generators-solv...

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how to make fmincon run with more others value of variable.
There seems to be something wrong with your syntax. Look at the documentation for this function with great care: https://www.ma...

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After upgrading to 2020b [az,el] dissappeared in my plot
Check out the releases note: https://www.mathworks.com/help/matlab/release-notes.html to see if there are any relevant updates...

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