cvcqv (version 1.0.0)

CoefQuartVar: R6 Coefficient of Quartile Variation (cqv)

Description

The R6 class CoefQuartVar for the coefficient of quartile variation (cqv)

Arguments

x

An R object. Currently there are methods for numeric vectors

na.rm

a logical value indicating whether NA values should be stripped before the computation proceeds.

digits

integer indicating the number of decimal places to be used.

Details

Coefficient of Quartile Variation

cqv is a measure of relative dispersion that is based on interquartile range (iqr). Since \(cqv\) is unitless, it is useful for comparison of variables with different units. It is also a measure of homogeneity [1].

References

[1] Bonett, DG., 2006, Confidence interval for a coefficient of quartile variation, Computational Statistics & Data Analysis, 50(11), 2953-7, DOI: http://doi.org/10.1016/j.csda.2005.05.007

Examples

# NOT RUN {
x <- c(
   0.2, 0.5, 1.1, 1.4, 1.8, 2.3, 2.5, 2.7, 3.5, 4.4,
   4.6, 5.4, 5.4, 5.7, 5.8, 5.9, 6.0, 6.6, 7.1, 7.9
)
CoefQuartVar$new(x)$est()
cqv_x <- CoefQuartVar$new(x, digits = 2)
cqv_x$est()
R6::is.R6(cqv_x)
# }