A fn for info_snippet(): get an inline statistical summary

The snip_stats() function can be used as an info_snippet() function (i.e., provided to fn) to produce a five- or seven-number statistical summary. This inline summary works well within a paragraph of text and can help in describing the distribution of numerical values in a column.

For a given column, three different types of inline statistical summaries can be provided:

1. a five-number summary ("5num"): minimum, Q1, median, Q3, maximum

2. a seven-number summary ("7num"): P2, P9, Q1, median, Q3, P91, P98

3. Bowley's seven-figure summary ("bowley"): minimum, P10, Q1, median, Q3, P90, maximum

Usage

snip_stats(column, type = c("5num", "7num", "bowley"))

Arguments

column

The target column

scalar<character> // required

The name of the column that contains the target values.

type

Type of statistical summary

singl-kw:[5num|7num|bowley] // default: "5num"

The type of summary. By default, the "5num" keyword is used to generate a five-number summary. Two other options provide seven-number summaries: "7num" and "bowley".

Value

A formula needed for info_snippet()'s fn argument.

Examples

Generate an informant object, add a snippet with info_snippet() and snip_stats() (giving us a method to get some summary stats for column d). Define a location for the snippet result in { } and then incorporate() the snippet into the info text. Note here that the order of the info_columns() and info_snippet() calls doesn't matter.

informant <-
  create_informant(
    tbl = ~ small_table,
    tbl_name = "small_table",
    label = "An example."
  ) %>%
  info_columns(
    columns = d,
    `Stats` = "Stats (fivenum): {stats_d}."
  ) %>%
  info_snippet(
    snippet_name = "stats_d",
    fn = snip_stats(column = "d")
  ) %>%
  incorporate()

We can print the informant object to see the information report.

informant

Function ID

3-7

See also

Other Information Functions: info_columns(), info_columns_from_tbl(), info_section(), info_snippet(), info_tabular(), snip_highest(), snip_list(), snip_lowest()