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Format Bayes factors

Source: R/format_statvalues.R
format_bf.Rd

format_bf() can input either a BayesFactor object or a vector of Bayes factor values. By default, this function rounds Bayes factors greater than 1 to one decimal place and Bayes factors less than 1 to two decimal places. Values greater than 1000 or less than 1/1000 are formatted using scientific notation. Cutoffs can be set that format the values as greater than or less than the cutoffs (e.g., BF > 1000 or BF < 0.001). Numbers of digits, cutoffs, italics, and label subscripts are all customizable.

Usage

format_bf(
  x,
  digits1 = 1,
  digits2 = 2,
  cutoff = NULL,
  label = "BF",
  italics = TRUE,
  subscript = "10",
  type = "md"
)

Arguments

x

BayesFactor object or vector of numeric Bayes factor values

digits1

Number of digits after the decimal for Bayes factors > 1

digits2

Number of digits after the decimal for Bayes factors < 1

cutoff

Cutoff for using _BF_~10~ > <cutoff> or _BF_~10~ < 1 / <cutoff> (value must be > 1)

label

Character string for label before Bayes factor. Default is BF. Set label = "" to return just the formatted Bayes factor value with no label or operator (=, <, >)

italics

Logical value (default = TRUE) for whether label should be italicized (BF or BF)

subscript

Subscript to include with BF label ("10", "01", or "" for no subscript)

type

Type of formatting ("md" = markdown, "latex" = LaTeX)

Value

A character string that includes label (by default BF~10~) and then the Bayes factor formatted in Markdown or LaTeX. If Bayes factor is above or below cutoff, _BF_~10~ > <cutoff> or _BF_~10~ < 1 / <cutoff> is used.

See also

Other functions for printing statistical objects: format_corr(), format_stats(), format_stats.BFBayesFactor(), format_stats.easycorrelation(), format_stats.htest(), format_ttest()

Examples

# Format BFBayesfactor objects from {BayesFactor} package
format_bf(BayesFactor::lmBF(mpg ~ am, data = mtcars))
#> [1] "_BF_~10~ = 87.3"

# Format Bayes factors > 1
format_bf(12.4444)
#> [1] "_BF_~10~ = 12.4"

# Bayes factors > 1000 will use scientific notation
format_bf(1244.44)
#> [1] "_BF_~10~ = 1.2×10^3^"

# Control digits for Bayes factors > 1 with digits1
format_bf(1244.44, digits1 = 3)
#> [1] "_BF_~10~ = 1.244×10^3^"

# Control cutoff for output
format_bf(1244.44, cutoff = 10000)
#> [1] "_BF_~10~ = 1244.4"

# Format Bayes factors < 1
format_bf(0.111)
#> [1] "_BF_~10~ = 0.11"

# Bayes factors < 0.001 will use scientific notation
format_bf(0.0001)
#> [1] "_BF_~10~ = 1.0×10^-4^"

# Control digits for Bayes factors < 1 with digits2
format_bf(0.111, digits2 = 3)
#> [1] "_BF_~10~ = 0.111"

# Control cutoff for output
format_bf(0.001, cutoff = 100)
#> [1] "_BF_~10~ < 0.01"

# Return only Bayes factor value (no label)
format_bf(12.4444, label = "")
#> [1] "12.4"

# Format for LaTeX
format_bf(12.4444, type = "latex")
#> [1] "$BF$$_{10}$ = 12.4"