search for: reduction_function

...a.table in a similar strategy to build lists like this before without issue from the same data. I'm not sure what is different about this code compared to my other code. Perhaps the merging? The gist of the R code is pretty basic (modified for simplicity). The action is all happening in the reduction_function and lapply. I keep reassigning to move to try to indicate to R that it can gc the previous object referenced by move. library(data.table) library(lubridate) # imports several data.tables, total 730 MiB load(UPC) # provides PL_flag data.table load(STORES) # and parent data.table timevar = 'mo...