tidy-format-translators function

Translate between different tidy data frame formats for draws from distributions

These functions translate ggdist/tidybayes-style data frames to/from different data frame formats (each format using a different naming scheme for its columns).

to_broom_names(data)

from_broom_names(data)

to_ggmcmc_names(data)

from_ggmcmc_names(data)

Arguments

• data: A data frame to translate.

Returns

A data frame with (possibly) new names in some columns, according to the translation scheme described in Details .

Details

Function prefixed with to_ translate from the ggdist/tidybayes format to another format, functions prefixed with from_ translate from that format back to the ggdist/tidybayes format. Formats include:

to_broom_names() / from_broom_names():

• .variable <-> term
• .value <-> estimate
• .prediction <-> .fitted
• .lower <-> conf.low
• .upper <-> conf.high

to_ggmcmc_names() / from_ggmcmc_names():

• .chain <-> Chain
• .iteration <-> Iteration
• .variable <-> Parameter
• .value <-> value

Examples

library(dplyr)

data(RankCorr_u_tau, package = "ggdist")

df = RankCorr_u_tau %>%
  dplyr::rename(.variable = i, .value = u_tau) %>%
  group_by(.variable) %>%
  median_qi(.value)

df

df %>%
  to_broom_names()

Author(s)

Matthew Kay