Usc {NADA2}

U-scores for (non-interval, sinle-column) Censored Data

Description

Computes the column of uscores from 2 columns of data in the indicator value format. Multiple detection limits allowed. Called by the uscores function, Usc (this function) is not expected to be of much use to users on its own.

Usage

Usc(y, ind, rnk = TRUE)

Arguments

y

The column of data values plus detection limits

ind

The column of indicators, where 1 (or TRUE) indicates a detection limit in the y column, and 0 (or FALSE) indicates a detected value in y.

rnk

A TRUE/FALSE variable on whether to compute the multivariate pattern on the uscores, or the ranks of the uscores. Default is rnk=TRUE, use the ranks. rnk = FALSE returns the uscores.

Value

Returns a single column of uscores or the ranks of uscores for a single pair of (concentration, indicator) censored data columns.

Examples

data(Brumbaugh)
uscore(Brumbaugh$Hg,Brumbaugh$HgCen)