feat: support rolling / ewm
these came up in the Plotly PR, and would help get to 100% cross-dataframe compatibility
Hello @FBruzzesi, do you plan to work on this?
@DeaMariaLeon I don't really have a plan/schedule on which issues to work on 🙈 Feel free to pick it up or split the work (rolling and ewm).
Focus now is in plotly PR - in which we keep this as a follow up, but it definitly will get high priority after we merge the main PR there
I started working on ewm.
Besides ewm_mean, Polars has ewm_mean_by, ewm_stdand ewm_var. Do we need all of them? Thanks @MarcoGorelli or @FBruzzesi
hey - I think this one might be enough for now to see if it's useful to Plotly, i'm a little hesitant to expand the API too much before we have use cases