Community Profile # jack star

Active since 2016

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How to create this specified matrix?
Hi all. I have some values from U(1)...to...U(500) , and I need help to create this matrix: <</matlabcentral/answers/uploaded...

6 years ago | 3 answers | 0

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Question

AR Spectrum Estimate with Covariance Method Order Problem
Hi all. I have data matrix y(80x200). I want to use AR Spectrum Estimate using Covariance Method (pcov) for orders 10,50,100. Bu...

6 years ago | 0 answers | 0

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Matrix dimensions to create for loop?
Both works fine, thanks a lot.

6 years ago | 0

Question

Matrix dimensions to create for loop?
Hi all. I have rr(6x200) matrix. I want to find Rc and V matrixes for each 200 column, I showed below for one column: ...

6 years ago | 3 answers | 0

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Question

How to remove mean from matrix values?
Hi all. I have M(80x200) matrix. I found mean A=mean(M) for every column so I have A(1x200) matrix. Now I want to subtract mean...

6 years ago | 1 answer | 0

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Question

How to create matrix from another matrix?
Hi all. I have m(80x200) matrix. I want to take first 41 values from each column and create n(41x200) matrix. Do I need for loop...

6 years ago | 1 answer | 0

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Question

Creating specific matrix from other matrix?
Hi all. I have data matrix *x*(1x160) and It's columns contains 0 and 1 values. I want to create a matrix that shows whichs colu...

6 years ago | 1 answer | 0

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Question

Creating matrix from other matrix columns with loop?
Hi all. I have data matrixes *x*(15x16) and *y*(15x16). And I want to create new matrix *z*(15x16) by taking some columns of x a...

6 years ago | 1 answer | 0

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Question

How to return from reshape function?
Hi all. I reshaped my data matrix y(24000x1) like this: x=reshape(y,150,160); I changed some datas of x and I want to retu...

6 years ago | 1 answer | 0

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Question

Creating for loop for matrixes?
Hi all. I am using these codes to calculate To and Fo. I have matrix x(150x160) and I need to process each column of it x(:,1),...

6 years ago | 1 answer | 0

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Question

How to create for loop to find coefficients of segments?
Hi all. I have a data matrix named: y (150x240) I'm using each column (150 datas) of that matrix to find some parameters. ...

6 years ago | 1 answer | 0

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Question

Finding energy of speech signal
Hi all. I have speech signal, and I divided it into frames with 150 samples. How can I calculate the energy of each frame? I'm t...

6 years ago | 1 answer | 0

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Question

Dividing speech signal into short-time segments?
Hi all. I created a speech signal in Matlab. I need to divide speech signal into short-time segments with lengths 150 samples. ...

6 years ago | 1 answer | 0