Hi,
i have the following problem: I need the standart deviation as part of my regression. Therefore i restrict the data to be atleast 3 observation per category for a specific year. However i do also want to include the data with only 1 or 2 observation but ofc for 1 there isn’t a standart deviation and is kinda pointless for 2. The standart deviation is only a control variable but vital for the result.
Does anyone know how i could handle that so i can still include these years for the categories with only 1 or 2 observations and not ruin my regression?
submitted by /u/Basilis988
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