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Hung Dao


Last seen: plus d'un an il y a |  Actif depuis 2021

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Question about aligning x-axes in subplots on the same row in Matlab
Dear Matlab experts, I have a question about creating a plot consisting of 4 subplots arranged in a 2 by 2 grid. I want to alig...

plus d'un an il y a | 2 réponses | 0

2

réponses

Question


plotting side-by-side error bars and data points
Hello Experts, I would be much grateful if you could help me with the following matter. I would like to create a plot similar t...

plus d'un an il y a | 1 réponse | 0

1

réponse

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chol() returns error even the matrix is positive definite.
I have a matrix , where is a identity matrix and is a matrix. It is clear that M is a positive definite matrix. However, I a...

presque 2 ans il y a | 2 réponses | 0

2

réponses

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Plot overlapped points (Matlab 2020a)
Hi, I have a scatter plot (see the picture and code below) comparing the true values with the estimation results from 3 methods...

presque 3 ans il y a | 3 réponses | 0

3

réponses

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How to duplicate rows of a matrix if the number of copies for each row are different?
Hi all, I want to duplicate each rows of a matrix according to the numbers given in a vector. For example, I have matrix A and...

environ 3 ans il y a | 3 réponses | 0

3

réponses

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How to get the smallest value in submatrices
Hi, I would appreciate if you could help me with this problem. I have a big matrix , where are submatrices of the same size...

environ 3 ans il y a | 2 réponses | 0

2

réponses

Question


How to add each column of matrix A with another matrix B?
Suppose is a column vector and is a matrix, then , a matrix. Now, I have matrix , each is a column vector. I would like ...

plus de 3 ans il y a | 1 réponse | 0

1

réponse

Question


Save data when an error occurs inside a function.
Hi, I have an algorithm (called algorithm A) that takes hours to run. Algorithm A is written in a script file 'Algorithm_A.m'. ...

plus de 3 ans il y a | 1 réponse | 0

1

réponse

Question


An efficient way to compute many sums with different number of terms
Suppose I have 2 functions and . Given different values of , define and ...

presque 4 ans il y a | 1 réponse | 0

1

réponse

Question


How to efficiently compute a sum of large vectors with elements depend on the sum index?
I have to compute the sum: , where are large column vectors ( dimension is about 10 millions) and is about 100 to 200. My fir...

presque 4 ans il y a | 1 réponse | 0

1

réponse