row_number {tidytable}

Ranking functions

Description

Ranking functions:

• row_number(): Gives other row number if empty. Equivalent to frank(ties.method = "first") if provided a vector.

• min_rank(): Equivalent to frank(ties.method = "min")

• dense_rank(): Equivalent to frank(ties.method = "dense")

• percent_rank(): Ranks by percentage from 0 to 1

• cume_dist(): Cumulative distribution

Usage

row_number(x)

min_rank(x)

dense_rank(x)

percent_rank(x)

cume_dist(x)

Arguments

x

A vector to rank

Examples

df <- data.table(x = rep(1, 3), y = c("a", "a", "b"))

df %>%
  mutate(row = row_number())