Beal.2010.Pb.df {EnvStats} | R Documentation |
Lead concentration in soil samples.
Description
Lead (Pb) concentrations (mg/kg) in 29 discrete environmental soil samples from a site suspected to be contaminated with lead.
Usage
Beal.2010.Pb.df
data(Beal.2010.Pb.df)
Format
A data frame with 29 observations on the following 3 variables.
Pb.char
Character vector indicating lead concentrations. Nondetects indicated with the less-than sign (e.g., <1)
Pb
numeric vector indicating lead concentration.
Censored
logical vector indicating censoring status.
Source
Beal, D. (2010). A Macro for Calculating Summary Statistics on Left Censored Environmental Data Using the Kaplan-Meier Method. Paper SDA-09, presented at Southeast SAS Users Group 2010, September 26-28, Savannah, GA. https://analytics.ncsu.edu/sesug/2010/SDA09.Beal.pdf.
[Package EnvStats version 3.1.0 Index]