Determing deviation from the mean(number of sigma) and plotting

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Hamed Hedayatnia 2021-5-24

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回答： Rishik Ramena 2021-5-31

example.xlsx

Hello everybody

I have Rain and DI values for 40 years and I want to plot deviation of individual years from the mean similar to this plot. How can I determine deviation of each year from the mean based on number of siga(6 sigma). I have put the rain values in the attachment.

Thanks in advance

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Answer 1

Rishik Ramena 2021-5-31

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https://ww2.mathworks.cn/matlabcentral/answers/838133-determing-deviation-from-the-mean-number-of-sigma-and-plotting#answer_713900

You can use the mean and std function to get the mean and standard deviation of your timeseries data. You can then use a formula like (data-mean)/standard deviation to get the deviation of your data in multiple of sigmas. Then use the plot function to plot the deviations along with the data.