teal_slices: Complete filter specification

In teal.slice: Filter Module for 'teal' Applications

Complete filter specification

Description

Create teal_slices object to package multiple filters and additional settings. Check out teal_slices-utilities functions for working with teal_slices object.

Usage

teal_slices(
  ...,
  exclude_varnames = NULL,
  include_varnames = NULL,
  count_type = NULL,
  allow_add = TRUE
)

Arguments

...	any number of teal_slice objects.
include_varnames, exclude_varnames	(⁠named list⁠s of character) where list names match names of data sets and vector elements match variable names in respective data sets; specify which variables are allowed to be filtered; see Details.
count_type	This is a new feature. Do kindly share your opinions on teal.slice's GitHub repository. (character(1)) string specifying how observations are tallied by these filter states. Possible options: "none" (default) to have counts of single FilterState to show unfiltered number only. "all" to have counts of single FilterState to show number of observation in filtered and unfiltered dataset. Note, that issues were reported when using this option with MultiAssayExperiment. Please make sure that adding new filters doesn't fail on target platform before deploying for production.
allow_add	(logical(1)) logical flag specifying whether the user will be able to add new filters

Details

teal_slices() collates multiple teal_slice objects into a teal_slices object, a complete filter specification. This is used by all classes above FilterState as well as filter_panel_api wrapper functions. teal_slices has attributes that modify the behavior of the filter panel, which are resolved by different classes.

include_varnames and exclude_varnames determine which variables can have filters assigned. The former enumerates allowed variables, the latter enumerates forbidden values. Since these could be mutually exclusive, it is impossible to set both allowed and forbidden variables for one data set in one teal_slices.

Value

teal_slices, which is an unnamed list of teal_slice objects.

See Also

• teal_slice for creating constituent elements of teal_slices

• teal::slices_store for robust utilities for saving and loading teal_slices in JSON format

• is.teal_slices, as.teal_slices, as.list.teal_slices, [⁠[.teal_slices⁠], c.teal_slices print.teal_slices, format.teal_slices

Examples

filter_1 <- teal_slice(
  dataname = "dataname1",
  varname = "varname1",
  choices = letters,
  selected = "b",
  keep_na = TRUE,
  fixed = FALSE,
  extra1 = "extraone"
)
filter_2 <- teal_slice(
  dataname = "dataname1",
  varname = "varname2",
  choices = 1:10,
  keep_na = TRUE,
  selected = 2,
  fixed = TRUE,
  anchored = FALSE,
  extra2 = "extratwo"
)
filter_3 <- teal_slice(
  dataname = "dataname2",
  varname = "varname3",
  choices = 1:10 / 10,
  keep_na = TRUE,
  selected = 0.2,
  fixed = TRUE,
  anchored = FALSE,
  extra1 = "extraone",
  extra2 = "extratwo"
)

all_filters <- teal_slices(
  filter_1,
  filter_2,
  filter_3,
  exclude_varnames = list(
    "dataname1" = "varname2"
  )
)

is.teal_slices(all_filters)
all_filters[1:2]
c(all_filters[1], all_filters[2])
print(all_filters)
print(all_filters, trim_lines = FALSE)

teal.slice documentation built on April 4, 2025, 12:39 a.m.