get_precision_by {Tplyr}

Set or return precision_by layer binding

Description

The precision_by variables are used to collect the integer and decimal precision when auto-precision is used. These by variables are used to group the input data and identify the maximum precision available within the dataset for each by group. The precision_by variables must be a subset of the by variables

Usage

get_precision_by(layer)

set_precision_by(layer, precision_by)

Arguments

layer

A tplyr_layer object

precision_by

A string, a variable name, or a list of variable names supplied using dplyr::vars.

Value

For get_precision_by, the precision_by binding of the supplied layer. For set_precision_by the modified layer environment.

Examples

# Load in pipe
library(magrittr)
lay <- tplyr_table(mtcars, gear) %>%
  add_layer(
    group_desc(mpg, by=vars(carb, am)) %>%
    set_precision_by(carb)
  )