Thanks. I see how redo works. For larger datasets, real scripts are a better idea. I expect my stuff to work with datasets up to about 1Gb, caching is easy t

Thanks. I see how redo works. For larger datasets, real scripts are a better idea. I expect my stuff to work with datasets up to about 1Gb, caching is easy to layer on and would speed up work for larger datsets, but my code assumes the data fits in memory. It would be easier to add caching, the make sure I don't load an entire dataset into memory. (I don't serialize the entire dataframe to the browser though).