Formatted Quantile Range

A function to calculate and format a quantile range.

fmt_quantile_range(
  x,
  format = "%.1f",
  sep = "-",
  lower = 0.25,
  upper = 0.75,
  type = 7
)

Arguments

x	The input data vector or data frame column.
format	A formatting string suitable for input into the sprintf function. By default, this format is defined as "%.1f", which displays the value with one decimal place.
sep	The character to use as a separator between the two quantiles.
lower	The lower quantile range. Default is .25.
upper	The upper quantile range. Default is .75.
type	An integer between 1 and 9 selecting one of the nine quantile algorithms. The default is 7, which is the standard R default. If you are trying to match SAS results, use type 2. See the quantile function documentation for further details.

Value

The formatted quantile range.

Details

This function calculates a quantile range using the stats package quantile function, and then formats the output using sprintf. You may control the format using the format parameter. Function will ignore any NA values in the input data. Results are returned as a character vector.

By default, the function calculates the 1st and 3rd quantiles at .25 and .75. The upper and lower quantile ranges may be changed with the upper and lower parameters.

See also

Other helpers: fmt_cnt_pct(), fmt_mean_sd(), fmt_median(), fmt_n(), fmt_range()

Examples

# Create example vector
v1 <- c(4.3, 3.7, 8.7, 6.1, 9.2, 5.6, NA, 0.7, 7.8, 4.9)

# Format Quantiles
fmt_quantile_range(v1)

# Output
# "4.3 - 7.8"