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...

environ 5 ans il y a | 1 réponse | 0

Réponse apportée
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,...

environ 5 ans il y a | 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 ...

environ 5 ans il y a | 2 réponses | 0

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...

environ 6 ans il y a | 1 réponse | 0

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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 ...

environ 6 ans il y a | 1 réponse | 0

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...

environ 6 ans il y a | 1 réponse | 0

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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...

environ 6 ans il y a | 1 réponse | 0

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...

environ 6 ans il y a | 1 réponse | 0

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),...

plus de 6 ans il y a | 1 réponse | 0

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...

presque 7 ans il y a | 1 réponse | 0

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 ...

plus de 7 ans il y a | 1 réponse | 0

Réponse apportée
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.

presque 8 ans il y a | 0

Réponse apportée
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)? ...

presque 8 ans il y a | 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...

presque 8 ans il y a | 3 réponses | 0