Formats p-values according to IQWiG Methods v8.0, Chapter 10.3.2 (p. 212):
3 decimal places
Values < 0.001 displayed as "<0.001" (or "<0,001" in German locale)
Locale-aware decimal separator
Usage
format_pvalue(
p,
digits = 3L,
threshold = 0.001,
locale = get_locale(),
trim = FALSE,
na_string = getOption("pharmhand.na_string", "NA")
)Arguments
- p
Numeric p-value or vector of p-values
- digits
Integer number of decimal places (default: 3, per IQWiG)
- threshold
Numeric threshold below which to display "<threshold" (default: 0.001)
- locale
Character locale for decimal separator: "en" or "de" (default: current pharmhand locale)
- trim
Logical, if TRUE remove trailing zeros (default: FALSE)
- na_string
String for missing values (default: getOption("pharmhand.na_string", "NA"))
Examples
format_pvalue(0.0234)
#> [1] "0.023"
# [1] "0.023"
format_pvalue(0.0234, locale = "de")
#> [1] "0,023"
# [1] "0,023"
format_pvalue(0.00005)
#> [1] "<0.001"
# [1] "<0.001"
format_pvalue(c(0.05, 0.001, 0.0001))
#> [1] "0.050" "0.001" "<0.001"
# [1] "0.050" "0.001" "<0.001"