EnvStats (version 2.1.0)

calibrate.object: S3 Class "calibrate"

Description

Objects of S3 class "calibrate" are returned by the EnvStats function calibrate, which fits a calibration line or curve based on linear regression.

Value

• See the help file for lm. Required Components Besides the usual components in the list returned by the function lm, the following components must be included in a legitimate list of class "calibrate".
• x
  the model matrix from the linear model fit.

Methods

Generic functions that have methods for objects of class "calibrate" include: NONE AT PRESENT.

Details

Objects of class "calibrate" are lists that inherit from class "lm" and include a component called x that stores the model matrix (the values of the predictor variables for the final calibration model).

See Also

calibrate, inversePredictCalibrate, detectionLimitCalibrate.

Examples

# Create an object of class "calibrate", then print it out.

  # The data frame EPA.97.cadmium.111.df contains calibration data for 
  # cadmium at mass 111 (ng/L) that appeared in Gibbons et al. (1997b) 
  # and were provided to them by the U.S. EPA. 

  calibrate.list <- calibrate(Cadmium ~ Spike, data = EPA.97.cadmium.111.df) 
 
  names(calibrate.list)

  calibrate.list


  #----------

  # Clean up
  #---------
  rm(calibrate.list)