set_limit_data_by: Set variables to limit reported data values only to those...

In Tplyr: A Traceability Focused Grammar of Clinical Data Summary

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()

Tplyr documentation built on May 29, 2024, 10:37 a.m.