Write the Hyper Param Grid Parquet File

Usage

rpwf_write_grid(obj)

Arguments

obj: obj generated by rpwf_augment().

Value

Parquet files.

Details

For each grid, initialize a new RGrid, call self$export(), then return the object. This make sure the same object called twice will just fetch the result from the previous call. Hence, can't be run in parallel.

At this point, we made sure that 1) the db is updated, 2) file is exported, 3) file exists. Use the hashes for getting the grid id.