R: Constructs the coefficient plots for Weisberg's Linear Growth Model analyses.

coefplot {FSA}

R Documentation

Constructs the coefficient plots for Weisberg's Linear Growth Model analyses.

Description

Constructs the coefficient plots for performing for Weisberg's Linear Growth Model analyses.

Usage

  coefplot(object, ...)

  ## S3 method for class 'WLGM':
  coefplot(object,what=c("age","year"),conf.level=0.95,xlab=what,
           ylab="Coefficient",ylim=range(d[,data.cols],na.rm=TRUE),
           xlim=range(d[,what],na.rm=TRUE),pts.pch=19,pts.cex=1.25,pts.col="black",
           con.lwd=3,con.lty=1,con.col="black",ci.lwd=2,ci.lty=1,ci.col="red",
           sfrac=0.01,gap=0,zero.lwd=2,zero.lty=3,zero.col="black", ...)

Arguments

`object`	A `WLGM` object (i.e., returned from the `wlgm` function).
`what`	A string indicating which type of coefficients should be plotted. Defaults to `"age"`.
`conf.level`	A decimal numeric indicating the level of confidence to use for confidence and prediction intervals.
`xlab`	A string for labeling the x-axis.
`ylab`	A string for labeling the y-axis.
`xlim`	A vector of the limits of the x-axis.
`ylim`	A vector of the limits of the y-axis.
`pts.pch`	The plotting character to be used for the coefficient points. See `par`.
`pts.cex`	The characther expanstion factor to be used for the coefficient points. See `par`.
`pts.col`	The color to be used for the coefficient points. See `par`.
`con.lwd`	The width of the line used to connect the coefficient points. See `par`.
`con.lty`	The type of line used to connect the coefficient points. See `par`.
`con.col`	The color of the line used to connect the coefficient points. See `par`.
`ci.lwd`	The width of the line used for the confidence interval “bars”. See `par`.
`ci.lty`	The type of line used for the confidence interval “bars”. See `par`.
`ci.col`	The color of the line used for the confidence interval “bars”. See `par`.
`sfrac`	Scaling factor for the size of the “serifs” (end bars) on the confidence bars, in x-axis units
`gap`	A logical or numeric giving the size of the gap in error bars around the points (default 0; `gap=TRUE` gives gap size of 0.01)
`zero.lwd`	The width of the line used for the horizontal line at zero. See `par`.
`zero.lty`	The type of line used for the horizontal line at zero. See `par`.
`zero.col`	The color of the line used for the horizontal line at zero. See `par`.
`...`	Other arguments to be passed to the `plot` function.

Value

None. However, a coefficient plot is produced.

Author(s)

Derek H. Ogle, dogle@northland.edu

Examples

## see the example for the wlgm function.

[Package FSA version 0.0-13 Index]