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

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Hamed Hedayatnia
Hamed Hedayatnia 2021-5-24
回答： Rishik Ramena 2021-5-31
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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回答（1 个）

Rishik Ramena
Rishik Ramena 2021-5-31
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.

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