Community Profile

# Hiro Yoshino

### MathWorks

105 total contributions 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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How can I take out months rows from each year.

7 days ago | 0

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.

7 days ago | 0

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

7 days ago | 0

how to derive 1D heat conduction

7 days ago | 0

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...

7 days ago | 0

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...

7 days ago | 1

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.

7 days ago | 0

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?

11 days ago | 0

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...

12 days ago | 0

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...

12 days ago | 0

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

12 days ago | 0

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

13 days ago | 0

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 ...

13 days ago | 1

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...

13 days ago | 1

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...

13 days ago | 0

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...

13 days ago | 0

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...

13 days ago | 0

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...

13 days ago | 0

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=...

13 days ago | 0

| accepted

Why matlab crashes when I try to use a numpy Python package? (2019a)

13 days ago | 0

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 ...

13 days ago | 0

| accepted

Running a script that produces a value more than once then storing the value each time into a vector
I agree with Mohammad. Here's the idea: dataStoringVector = zeros(1,10); % Initialization for i = 1:10 calcResult = i + ...

13 days ago | 0

| accepted

How to solve integration function with limit and get the values between the limit ?
How about using Symbolic Math Toolbox? https://www.mathworks.com/help/symbolic/examples/integration.html

17 days ago | 0

Making a map in matlab
I bet either geoplot or geoscatter is the one for you. https://www.mathworks.com/help/matlab/ref/geoplot.html?requestedDomain= ...

17 days ago | 0

Breakpointを使って、どこでエラーが発生しているか調べられますか？

17 days ago | 0

How can i distribute plot markers normally?
Whad do you mean by normally?

19 days ago | 0

| accepted

Nonlinear data-fitting
I just wonder if this is a linear model? (1) Is b a coefficient vector? (2) Do you need to estimate "a" too? if (1) yes, (2...

19 days ago | 0

I can not use randomAffine2d function in matlab R2019a. How can I import to matlab?
If you go to the bottom of the page (https://www.mathworks.com/help/images/ref/randomaffine2d.html?requestedDomain=), you can ...

19 days ago | 0

まずこちらから https://jp.mathworks.com/help/matlab/matlab_prog/conditional-statements.html どうぞ！

20 days ago | 0