Examples/data_ops/ex.md

In WinVector/rquery: Relational Query Generator for Data Manipulation at Scale

ex Example

library(rqdatatable)

## Loading required package: rquery

d <- data.frame(x = 1:3, y = 4:6)
ops <- wrap(d) %.>%
  extend(., z := x + y)

print(ops)

## [mk_td("d", c(
##   "x",
##   "y")) %.>%
##  extend(.,
##   z := x + y)
## ](
##  d)

ops %.>%
  ex %.>%
  knitr::kable(.)

| x | y | z | | -: | -: | -: | | 1 | 4 | 5 | | 2 | 5 | 7 | | 3 | 6 | 9 |

d %.>%
  knitr::kable(.)

| x | y | | -: | -: | | 1 | 4 | | 2 | 5 | | 3 | 6 |

WinVector/rquery documentation built on Aug. 24, 2023, 11:12 a.m.