R/lsquared.R

In agrmt: Calculate Concentration and Dispersion in Ordered Rating Scales

lsquared <- function(V) {
# measure of concentration, following Blair & Lacy 2000
# argument: V = frequency vector
## k <- length(V) # number of categories
## lsq <- dsquared(V)/((k-1)/4)
## return(lsq)
lsq = concentration(V, 2)^2
return(lsq)
}