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Hiro Yoshino


Last seen: 1日 前

MathWorks

114 2019 年以降の合計貢献数

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

Hiro Yoshino's バッジ

  • 3 Month Streak
  • Knowledgeable Level 3
  • Revival Level 2
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how do you separate time data from signal data, plot the signal, followed by the removal of the trend without using the inbuilt ‘detrend’ function
well .... how about removing the mean to begin with? plot(t, a - mean(a));

8日 前 | 0

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2nd Order ODE by ode45
You can walk through this: https://www.mathworks.com/help/matlab/ref/ode45.html I guess this is what you work on - read, under...

8日 前 | 0

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FFT to covert time domain to frequency domain
Take a look at this page: https://www.mathworks.com/help/matlab/ref/fft.html where you can find some examples that you can uti...

8日 前 | 0

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Newton-Raphson iteration method in Matrices
I had a quick look though ... you are having lots of errors. MATLAB has a fantastic bug finder as you can see. The areas hi...

8日 前 | 0

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RSA keys generation using matlab
Hope this helps you: https://www.mathworks.com/matlabcentral/fileexchange/53457-rsa-public-key-encryption-and-signing-32bit

8日 前 | 0

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Index position 2 exceeds array bounds
I had a look at it quickly - you were obviously failing in importing the pressure and the flowrate. xlsread(filename, 3, hRange...

8日 前 | 0

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How do I make my variables save from my function?
You're doing well! Try this: x = [1 1]; [f, grad, gradTwo] = Rosen(x) You should prepare the three variables that recieve t...

8日 前 | 0

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Do we have the facility to create a network topology for cloud and fog environment in matlab
I am not an expert in this filed though I have ever introduced this product to a customer who wanted to model a rail network. h...

8日 前 | 1

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How to place a uicalendar inside a panel
How about using AppDesigner? There is a function available that looks able to meet your want. https://jp.mathworks.com/help/mat...

8日 前 | 0

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How can I take out months rows from each year.
I guess your date is not read as string. tableData = readtable('yourExcel.xlsx'); tableData.Time = string(tableData.Time); Th...

17日 前 | 0

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How to position two figures on one app-designer gridlayout position?
app.UIAxes.Visible = 'off'; Try this. It worked with my app where a push botton call this line so it can disappear.

17日 前 | 0

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Discretize countries into regions
One thought would be .... clustering algorithms. How about using geographical data (longitude and latitude) as an input vector ...

17日 前 | 0

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how to derive 1D heat conduction
https://jp.mathworks.com/products/pde.html?s_tid=srchtitle PDE toolbox would help you out!

17日 前 | 0

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How can I shade confidence intervals on a loglog plot?
x = -10:0.1:10; % between intersections yy1 =x.^2; %lower function yy2 = -(x.^2-16); % upper function x = [x,x]; % rep...

17日 前 | 0

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How can I take out months rows from each year.
d = ['190101'; '190201'; '190301']; % sample data d_datetime = datetime(d, 'InputFormat', 'yyMMdd'); % change format to datet...

17日 前 | 1

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Matlab: a function y where y is the 𝑛-th Chebyshev polynomial of the first kind evaluated at xy is the 𝑛-th Chebyshev polynomial of the first kind evaluated at xy is the 𝑛-th Chebyshev polynomial of the first k
https://jp.mathworks.com/matlabcentral/fileexchange/56566-chebyshev-polynomial I came across this but not sure if it works.

17日 前 | 0

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Why matlab crashes when I try to use a numpy Python package? (2019a)
https://www.youtube.com/watch?v=aJGmnPfJBuo Have you ever tried this ? - calling MATLAB from the anaconda prompt?

21日 前 | 0

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Why matlab crashes when I try to use a numpy Python package? (2019a)
Read the documentation for R2019a. You might have counted on the latest. It might be a cause of the problem. Sometimes, there...

22日 前 | 0

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how to plot smooth line plot?
How about increasing the number of data by using interpolation?: https://jp.mathworks.com/help/matlab/ref/interp1.html?s_tid=do...

22日 前 | 0

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Clustering based on threshold values.
There are various methods available:https://jp.mathworks.com/discovery/cluster-analysis.html

22日 前 | 0

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Clustering based on threshold values.
Is this a question about how to classify the data based on threshold? if condition "classification description" else ...

23日 前 | 0

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How to find rng No. of a trained network ?
You should have taken a note or fixed the seed number before the training. As far as I know, there is no ways to find out what ...

23日 前 | 1

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MATLAB code for flood model
You should define your (mathematical expression) model first, then code follows. What kind of model do you want to convert into...

23日 前 | 1

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Phase Shift between 0 and pi
I wonder if you have a good understanding on FFT :-) Remember that the signals are discrete and thus the m shift in the time do...

23日 前 | 0

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How to train neural network using newff with a custom loss function?
Which version are you using? Looks like there is no such a function. This might be a help: https://www.mathworks.com/matlabcen...

23日 前 | 0

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Fourier Transform: IFFT Not Giving Original Image -- All Values Off By Same Constant
Why not using fft2?: https://jp.mathworks.com/help/matlab/ref/fft2.html I would say it is educational to write it from scratch...

23日 前 | 0

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Creating a simple 2D contour plot from data files(xlsx or txt).
Here the function for 'contour': https://jp.mathworks.com/help/matlab/ref/contour.html?s_tid=doc_ta Give me detail if possib...

23日 前 | 0

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How do I find if a value exists already in cell array's column, and then select the column & row to store some output data based on whether its existing or new?
There are many useful functions for preprocessing the data: https://jp.mathworks.com/help/matlab/preprocessing-data.html?s_tid=...

23日 前 | 0

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Why matlab crashes when I try to use a numpy Python package? (2019a)
This might be useful: https://jp.mathworks.com/matlabcentral/answers/410406-import-numpy-to-matlab

23日 前 | 0

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For Loop /Array question
How about this?: X = zeros(50, 50); [m, n] = size(X); % m x n = 50, 50 for i = 1:m % Row for j = 1:n % Column ...

23日 前 | 0

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