summariseTopN: Truncate a dplyr summarisation using an "Other..." summary...

In terminological/standard-print-output: Standard Graph and Table Utilities

Description

Sometimes when you have a lot of results you want to show a short version of the results with an "Other..." category. This function performs a summarisation and allows you to specify the number of rows you want and something to sort the rows by. It will then give you strictly the top n results (ignoring ties) and group all the other results into a single summary row entitled "Other..."

Usage

summariseTopN(df, n, sortVar, label = "Other...", ...)

Arguments

df	- a grouped df - there must be some grouping for the summarise to return more than one row.
n	the number of rows to keep - the result will have one more row than this
sortVar	- the column containing the variable to sort by (syntax as in arrange(...))
label	- the name of the "Other..." row
...	- the arguments to the dplyr summarise(...)

Examples

diamonds %>% group_by(clarity) %>% summariseTopN(n=5, sortVar = desc(count), count = n(), avPrice = mean(price))

terminological/standard-print-output documentation built on July 18, 2021, 9:29 a.m.