Modified.TcCB.df: Modified 1,2,3,4-Tetrachlorobenzene Data with Censored Values
In EnvStats: Package for Environmental Statistics, Including US EPA Guidance
Modified.TcCB.df R Documentation
Modified 1,2,3,4-Tetrachlorobenzene Data with Censored Values
Description
Artificial 1,2,3,4-Tetrachlorobenzene (TcCB) concentrations with censored values;
based on the reference area data stored in EPA.94b.tccb.df. The data
frame EPA.94b.tccb.df contains TcCB concentrations (ppb) in soil samples
at a reference area and a cleanup area. The data frame
Modified.TcCB.df contains a modified version of the data from the reference area.
For this data set, the concentrations of TcCB less than 0.5 ppb have been recoded as
<0.5.
Usage
Modified.TcCB.df
Format
A data frame with 47 observations on the following 3 variables.
TcCB.origa character vector of original TcCB concentrations (ppb)
TcCBa numeric vector with censored observations set to their detection level
Censoreda logical vector indicating which observations are censored
Source
Millard, S.P., and N.K. Neerchal. (2001). Environmental Statistics with S-PLUS.
CRC Press, Boca Raton, FL, p.595.
References
USEPA. (1994b). Statistical Methods for Evaluating the Attainment of Cleanup Standards, Volume 3: Reference-Based Standards for Soils and Solid Media.
EPA/230-R-94-004. Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency, Washington, D.C.
See Also
EPA.94b.tccb.df.
EnvStats documentation built on June 8, 2025, 11:37 a.m.
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| Modified.TcCB.df | R Documentation |
Modified 1,2,3,4-Tetrachlorobenzene Data with Censored Values
Description
Artificial 1,2,3,4-Tetrachlorobenzene (TcCB) concentrations with censored values;
based on the reference area data stored in EPA.94b.tccb.df. The data
frame EPA.94b.tccb.df contains TcCB concentrations (ppb) in soil samples
at a reference area and a cleanup area. The data frame
Modified.TcCB.df contains a modified version of the data from the reference area.
For this data set, the concentrations of TcCB less than 0.5 ppb have been recoded as
<0.5.
Usage
Modified.TcCB.dfFormat
A data frame with 47 observations on the following 3 variables.
TcCB.origa character vector of original TcCB concentrations (ppb)
TcCBa numeric vector with censored observations set to their detection level
Censoreda logical vector indicating which observations are censored
Source
Millard, S.P., and N.K. Neerchal. (2001). Environmental Statistics with S-PLUS. CRC Press, Boca Raton, FL, p.595.
References
USEPA. (1994b). Statistical Methods for Evaluating the Attainment of Cleanup Standards, Volume 3: Reference-Based Standards for Soils and Solid Media. EPA/230-R-94-004. Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency, Washington, D.C.
See Also
EPA.94b.tccb.df.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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