Helsel.Cohn.88.app.b.df {EnvStats} | R Documentation |

##
Example of Multiply Left-censored Data from Literature

### Description

Made up multiply left-censored data. There are 9 observations out of a total of 18
that are reported as <`DL`

, where `DL`

denotes a detection limit. There are
2 distinct detection limits.

### Usage

`Helsel.Cohn.88.app.b.df`

### Format

A data frame with 18 observations on the following 3 variables.

`Conc.orig`

a character vector of original observations

`Conc`

a numeric vector of observations with censored values coded to censoring levels

`Censored`

a logical vector indicating which values are censored

### Source

Helsel, D.R., and T.A. Cohn. (1988). Estimation of Descriptive Statistics for Multiply Censored Water Quality Data.
*Water Resources Research* **24**(12), 1997–2004, Appendix B.

[Package

*EnvStats* version 2.8.1

Index]