set_limit_data_by {Tplyr}

Set variables to limit reported data values only to those that exist rather than fully completing all possible levels

Description

This function allows you to select a combination of by variables or potentially target variables for which you only want to display values present in the data. By default, Tplyr will create a cartesian combination of potential values of the data. For example, if you have 2 by variables present, then each potential combination of those by variables will have a row present in the final table. set_limit_data_by() allows you to choose the by variables whose combination you wish to limit to values physically present in the available data.

Usage

set_limit_data_by(e, ...)

Arguments

e

A tplyr_layer

...

Subset of variables within by or target variables

Value

a tplyr_table

Examples

tplyr_table(tplyr_adpe, TRT01A) %>%
  add_layer(
    group_desc(AVAL, by = vars(PECAT, PARAM, AVISIT))
  ) %>%
  build()

tplyr_table(tplyr_adpe, TRT01A) %>%
  add_layer(
    group_desc(AVAL, by = vars(PECAT, PARAM, AVISIT)) %>%
      set_limit_data_by(PARAM, AVISIT)
  ) %>%
  build()

tplyr_table(tplyr_adpe, TRT01A) %>%
  add_layer(
    group_count(AVALC, by = vars(PECAT, PARAM, AVISIT)) %>%
      set_limit_data_by(PARAM, AVISIT)
  ) %>%
  build()

tplyr_table(tplyr_adpe, TRT01A) %>%
  add_layer(
    group_count(AVALC, by = vars(PECAT, PARAM, AVISIT)) %>%
      set_limit_data_by(PECAT, PARAM, AVISIT)
  ) %>%
  build()