how to calculate anomaly ?

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Lilya
Lilya 2022-2-15
评论： Lilya 2022-2-19
Hi all,
I want to extract data based on the months using this function 'monthofyear' to calculate anomalies.
The written code shows the wrong results.
Any help is appreciated
anom=[];
i=1;
for yy = 2019
ndays = eomday(yy, 1:12);
for mm = 1:12
for dd = 1:ndays(mm)
monthofy = month(datetime(yy,mm,dd),'monthofyear');
nn = norm(:,:,monthofy);
anom(:,:,i) = sez_chl - nn; %sez_chl is 3d matrix 72*46*46
i=i+1;
end
end
end

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回答（1 个）

Image Analyst
Image Analyst 2022-2-15
There is a whole family of "outlier" functions, like rmoutliers(), etc. Look into them.
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Image Analyst
Image Analyst 2022-2-17
Note that you forgot to read this
TUTORIAL: How to ask a question (on Answers) and get a fast answer
and attach your data, so all we can do is guess. We have not seen your time series data, sez_chl, or norm.
Lilya
Lilya 2022-2-19
norm is a function in matalb
https://www.mathworks.com/help/symbolic/norm.html
also, i've attached the data.

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