I would like to know if it is possible to establish a mapping relationship between dataframe and datatable.
It can convert user`s operations on a dataframe into ones on that datatable without modifying the original code.
This may solve the slow running problem of some R packages without having to modify the source code.
best wishes
I don't think it would be possible to robustly convert an R script using base R to the equivalent {data.table} commands.
If you want your R developers to have the speed of {data.table} without learning its syntax, you could try something like {tidytable}, which uses tidyverse syntax that is converted to {data.table} commands.
That being said, I'd encourage anyone that regularly has to analyze large data sets to invest in learning {data.table}. As a long time {data.table} user, I think it is very worth the time investment.