R: Test duplicated observations determined by key and index...

is_duplicated {tsibble}

R Documentation

Test duplicated observations determined by key and index variables

Description

is_duplicated(): a logical scalar if the data exist duplicated observations.
are_duplicated(): a logical vector, the same length as the row number of data.
duplicates(): identical key-index data entries.

Usage

is_duplicated(data, key = id(), index)

are_duplicated(data, key = id(), index, from_last = FALSE)

duplicates(data, key = id(), index)

Arguments

`data`	A data frame for creating a tsibble.
`key`	Variable(s) that define unique time indices, used in conjunction with the helper `id()`. If a univariate time series (without an explicit key), simply call `id()`.
`index`	A bare (or unquoted) variable to specify the time index variable.
`from_last`	`TRUE` does the duplication check from the last of identical elements.

Examples

harvest <- tibble(
  year = c(2010, 2011, 2013, 2011, 2012, 2014, 2014),
  fruit = c(rep(c("kiwi", "cherry"), each = 3), "cherry"),
  kilo = sample(1:10, size = 7)
)
is_duplicated(harvest, key = id(fruit), index = year)
are_duplicated(harvest, key = id(fruit), index = year)
are_duplicated(harvest, key = id(fruit), index = year, from_last = TRUE)
duplicates(harvest, key = id(fruit), index = year)

[Package tsibble version 0.6.2 Index]