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Sirius8


Last seen: Today
23 total contributions since 2017

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Question


matlab area calculation under fitted curve
I have a signal and want to calculate the area under the produced fft with step of 5Hz. So far i created an fft, normalized an...

14 dagen ago | 1 answer | 0

1

answer

Question


mean amplitude moving xcorr

ongeveer een maand ago | 0 answers | 0

0

answers

Question


handle character minus character
I have two characters which contain '18:29:42.835' and '18:29:49.425'. How is it possible to subtrack t2-t1 so as to find durati...

3 maanden ago | 2 answers | 0

2

answers

Question


add line in a datetime plot
Hello I have a figure with datetime in x- axis. I want to plot a vertical line like the one you see in attached picture but thro...

3 maanden ago | 1 answer | 0

1

answer

Answered
fitting envelope peak points
@Image Analyst thank you once more for your answer!I tried to change the code so as to receive something like this but i did not...

3 maanden ago | 0

Question


Best to import and plot one large csv file

4 maanden ago | 1 answer | 0

1

answer

Question


fitting envelope peak points
I am facing some problems trying to create a fitting curve that will pass through maximum peaks. I tried findpeaks findpeaks...

4 maanden ago | 2 answers | 0

2

answers

Question


plot vector with string timestamp
i want to plot some data with timestamp. Timestamp is string like this: 2019-07-01T18:55:02.197040 and my data are vector. Any h...

7 maanden ago | 1 answer | 0

1

answer

Question


New variables in a loop
Hello everyone! I'm facing some issues while trying to create new variables inside a for loop. Here is the first part of my code...

9 maanden ago | 1 answer | 0

1

answer

Question


Replace values in collumns
Hi everyone. I am having an issue while processing some acceleration data. I retrieve in my file 8 collumns as you can see in pi...

11 maanden ago | 1 answer | 0

1

answer

Answered
Linear interpolation in loop
Any ideas how to calculate and plot two R2 values (one for each line) in every figure? x=[1:0.5:12.5]; y=[0.2455,0.247,0.2485,...

ongeveer een jaar ago | 0

Question


Linear interpolation in loop
Hello, i'm trying to create a script for traveltime curves which will have as an output several plots with 2 best fit lines. To ...

ongeveer een jaar ago | 2 answers | 0

2

answers

Question


Plot large CSV files with timestamp
I have a large csv file and try to load it into MATLAB and plot it with timestamp. My release is 2016b and i have 8gb of RAM. M...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


plot traveltimes axes configuration
Hello, i have some seismic survey data (7 channels) and tried to plot them all in one figure without axes. So far so good but I ...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


Import and plot .CSV with timestamp
I have a csv file along with timestamp and i cannot manage to plot my data correctly. My file is comma delimited, first date, th...

bijna 2 jaar ago | 1 answer | 0

1

answer

Question


Comparing elements in one matrix in a loop
Hi All, I have a large matrix with one column containing only values. I want to make a loop and compare every time if the ave...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


How to handle big csv files
I have huge .csv files comming daily and i want to know how i can handle them. For the moment, only to have an idea, i run a pyt...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


Wrong date while importing .csv
Having a problem when i import daily .csv files. More specifically, when i plot my xy data(x axis contains date and time stamp),...

ongeveer 2 jaar ago | 1 answer | 0

1

answer

Question


large csv import and split
As a newbie i am working on a signal retrieved from a geophone. What i am trying to do is to import my .csv file (weekly file si...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Split into different columns a .csv file with characters ';'
I have a large .csv file with the below format ('Date;Time;Value'). '16/4/2017;05:12:02;1.21' and need to import it ...

meer dan 3 jaar ago | 1 answer | 0

1

answer

Answered
Confusion with FFT for a specific part of the whole signal
So in order to produce a periodogram, my input x should be the acceleration vector.

meer dan 3 jaar ago | 0

Answered
Confusion with FFT for a specific part of the whole signal
One last question. In [PSDx,fx] = periodogram(x,[],[],Fs,'power'); x should be i) the original signal (acc over time)? ...

meer dan 3 jaar ago | 0

Question


Confusion with FFT for a specific part of the whole signal
As a newbie i am working on a signal from an accelerometer and i am trying to produce an fft for a specific part of the whole si...

meer dan 3 jaar ago | 3 answers | 0

3

answers