ex_data_table_step.relop_non_sql: Direct non-sql (function) node, not implemented for...

In WinVector/rqdatatable: 'rquery' for 'data.table'

Direct non-sql (function) node, not implemented for data.table case.

Description

Passes a single table to a function that takes a single data.frame as its argument, and returns a single data.frame.

Usage

## S3 method for class 'relop_non_sql'
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.

See Also

rq_df_funciton_node, rq_df_grouped_funciton_node

Examples

set.seed(3252)
d <- data.frame(a = rnorm(1000), b = rnorm(1000))

optree <- local_td(d) %.>%
  quantile_node(.)
d %.>% optree

p2 <- local_td(d) %.>%
  rsummary_node(.)
d %.>% p2

summary(d)

WinVector/rqdatatable documentation built on Aug. 22, 2023, 3:25 p.m.