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Linearly detrended and a 30-day running mean

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Ali Saremi
Ali Saremi on 5 May 2021
Edited: Ali Saremi on 17 May 2021
Dear Sir/Madam,
I hope you are well.
I have a dataset consisiting of water level observations.
The dataset needs to be linearly detrended first. Afterwards, the seasonal and interannual variability components need to be drived by applying a 30-day running mean to the detrended time series.
I was wondering if anyone could help me with this. Thank you and I look forward to hearing from you.
Kind regards,
Ali

Accepted Answer

Steven Lord
Steven Lord on 5 May 2021
See the detrend and movmean functions.
  1 Comment
Ali Saremi
Ali Saremi on 17 May 2021
Hi Steven,
Thank for your reply. I did import my data into MATLAB and I was able to detrend the data column and plot it. but when I wanted to display a fit on the figure (linear) through Tools/linear, the option was off becasue of using datetime (i think) in the plot, so I had to plot the detrend values solely to fit a linear line in the detrended plot. I was wondering if you could help me with that. In my plot i want the date and detrend values while i could be able to display fits on figure.
Thank you and I look forward to hearing from you.
Kind regards,
Ali

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