Learn R Programming

EnvStats (version 3.0.0)

EPA.09.Ex.21.6.nitrate.df: Nitrate Concentrations from Example 21-6 of 2009 USEPA Guidance Document

Description

Nitrate concentrations (mg/L) at a well used for drinking water.

Usage

EPA.09.Ex.21.6.nitrate.df

Arguments

Format

A data frame with 12 observations on the following 5 variables.

Sampling.Date

a character vector indicating the sampling date

Date

a Date object indicating the sampling date

Nitrate.mg.per.l.orig

a character vector of original nitrate concentrations (mg/L)

Nitrate.mg.per.l

a numeric vector of nitrate concentrations (mg/L) with nondetects set to their detection limit

Censored

a logical vector indicating which observations are censored