ragged: Display a 'data.frame' with "ragged" keys

In mrdwab/SOfun: Functions From Answers to R Questions on Stack Overflow

Description

This is a display method for data.frames to show ragged key/grouping variables, similar to ftable

Usage

ragged(indt, keys, blank = "")

## S3 method for class 'ragged'
print(x, ...)

Arguments

indt	The input data.frame or data.table
keys	The variables to be used as keys or grouping variables
blank	The character to print to show nesting. Defaults to "".
x	The object to be printed.
...	Not used.

Value

A list with a "ragged" object and the sorted data.table. The custom print method displays the "ragged" result, but allows further use of data.table.

Author(s)

Ananda Mahto

References

https://stackoverflow.com/q/41324110/1270695

See Also

stats::ftable()

Examples

before= data.frame(C1= c(rep("A", 5), rep("L", 2)),
C2= c("B", rep("E", 3), rep("K", 2), "L"),
C3= c("C", "F", rep("H", 5)),
C4= c("D", "G", "I", rep("J", 4)), 
stringsAsFactors = FALSE)

ragged(before, c("C1", "C2"))
ragged(before, names(before), ":")
ragged(head(ggplot2::diamonds, 30), c("cut", "color"), ":")[, mean(price), .(cut, color)]

mrdwab/SOfun documentation built on June 20, 2020, 6:15 p.m.