data.table based implementation.

# S3 method for relop_null_replace
ex_data_table_step(
  optree,
  ...,
  tables = list(),
  source_usage = NULL,
  source_limit = NULL,
  env = parent.frame()
)

Arguments

optree

relop operations tree.

...

not used, force later arguments to bind by name.

tables

named list map from table names used in nodes to data.tables and data.frames.

source_usage

list mapping source table names to vectors of columns used.

source_limit

if not null limit all table sources to no more than this many rows (used for debugging).

env

environment to work in.

Examples

dL <- build_frame( "x", "y" | 2L , 5 | NA , 7 | NA , NA ) rquery_pipeline <- local_td(dL) %.>% null_replace(., c("x", "y"), 0, note_col = "nna") dL %.>% rquery_pipeline
#> x y nna #> 1 2 5 0 #> 2 0 7 1 #> 3 0 0 2