You might be interested in https://commons.apache.org/proper/commons-math/userguide/stat.html

The DescriptiveStatistics class has a mechanism for handling rolling standard deviation

It’s not integrated into tablecloth but probably not hard to do

This might be helpful: https://techascent.github.io/tech.ml.dataset/tech.v3.dataset.rolling.html

in R, they are here: https://rdrr.io/cran/data.table/man/froll.html

thanks for all the hints, I'll look into these!