The (weighted) Interquartile Range

computes interquartile range of the x values. Weights are supported.

Usage

iqrX(x, weights = NULL, na.rm = FALSE, type = NULL)

Arguments

x

numeric vector

weights

optional numeric vector giving the sample weights

na.rm

logical; whether to remove missing values

type

an integer selecting one of the many quantile algorithms, see quantileX()

Value

numeric scalar containing the interquartile range

Details

This implementation is based on quantileX() function, which allows to define weights.

See also

medianX, quantileX, IQR, quantile

Other dispersion: coefVar(), madX(), meanAD(), meanSE(), rangeX(), varX()

Examples

x <- c(3.7,3.3,3.5,2.8)
w <- c(5, 5, 4, 1)/15

iqrX(x=x, weights=w)
#> [1] 0.4