# Fan Yang

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**Content Feed**

Question

what filter can be used to remove background noise in my signal?

I was given a signal with lots of noise, particulary noise from x*100hz where x = (1:1:100). Below is the frequency representat...

4 months ago | 0 answers | 0

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answersQuestion

How to remove multiple evenly spaced frequency components from digital signal

Hey guy, the FFT of my acustic signal returned some evenly spaced back group noisey frequencies 3,6,9,12,15hz. To remove them a...

6 months ago | 0 answers | 0

### 0

answersQuestion

Failed to establish a TCP connection between two computers on MATLAB

I am try to establish a TCP connection between two computers using tcpserver and tcpclient so that the client send a number 0 ev...

7 months ago | 0 answers | 0

### 0

answersQuestion

How to make the errorbar and the data line have different line width

I am trying to plot a like with errorbar using errorbar function. dt = [sin((1:10));cos((1:10))] errorbar(mean(dt),std(dt)) W...

7 months ago | 1 answer | 0

### 1

answerQuestion

Errorbar overlapping with the left and right border of a plot

a = [1,2,3,4;5,6,7,8] errorbar(mean(a),std(a)) The two lines of code above generate an line of mean value with errorbars. How...

7 months ago | 1 answer | 0

### 1

answerQuestion

plot lines with different x axes on the same MATLAB plot

I am trying to plot two lines with diffenent x axes on the same plot, but matlab kept "avoiding" the first plot and only plot th...

7 months ago | 1 answer | 0

### 1

answerQuestion

prepare a table for fitrm and manova

I am try to perform a one way repeated measure MANOVA on a set of data. In this data, I have 6 subjects. Each subject is measure...

7 months ago | 1 answer | 0

### 1

answerQuestion

how can I open the movie player window beforehand?

Hey guys, I need to display a video made out of a sequence of images. I used implay function, but it have a problem. It tool ...

7 months ago | 1 answer | 0

### 1

answerQuestion

execute a block of code based on real time analog input

Hey guys, I am trying to to sychnronize EEG acquisition and visual stimulation so that they achieve time alignment. My EEG equi...

8 months ago | 0 answers | 0

### 0

answersQuestion

Arduino support package send two value at the same time to different port

I need to trigger EEG and fMRI at the same time by a visual stimulation I wrote in matlab. I can use the arduino support package...

8 months ago | 0 answers | 0

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answersQuestion

My white and black strips becomes a a black surface using imread and imshow

I have a .PNG picture containing black and white strips shown below. I was trying show this image in MATLAB using imread and ...

8 months ago | 1 answer | 0

### 1

answerQuestion

cell array manipulation and cell array conversion

Hi guys, I have a cell array containing date and time (from year to millisecond). how can I manipulate the cell array so it only...

2 years ago | 1 answer | 0

### 1

answerQuestion

A problem I have using the subplot command

When I run the script, I expect one of the outpots to be a 8 by 3 subplot. However, one of the plots in the subplot is missing...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to put a name on each double variable in a cell array"

Hi guys, I am trying to load all the data, as a numberic array, into a cell array K, but I wand to be able to identity which fi...

2 years ago | 1 answer | 0

### 1

answer# of elements mismatch

Thanks for your answer! You are abslutely right. It is an 0 X 0 empty char array, but how did this empty cell sneak into this v...

2 years ago | 0

Question

# of elements mismatch

Hi you all, I have a cell array named tlthat only has 96 elements in the fist column, and those are all the element in this arr...

2 years ago | 3 answers | 0

### 3

answersQuestion

how does the vector extration operated in the following commands

a=[3 1 2 12 4] x=(2:end) why does x contain 1, 2, 12, and 4?

4 years ago | 1 answer | 0