plotCoords: API for defining data coordinates of a plot

In playwith: A GUI for interactive plots using GTK+

Description

Given a call to a plot function, return the data coordinates.

Usage

plotCoords(name, object, call, envir, ...)

## Default S3 method:
plotCoords(name, object, call, envir, data, panel.args, ...)

## S3 method for class 'qqnorm'
plotCoords(name, object, call, envir, ...)
## S3 method for class 'qqplot'
plotCoords(name, object, call, envir, ...)

plotCoords.plot(name, object, call, envir, ...)
## Default S3 method:
plotCoords.plot(name, object, call, envir, data, ...)
## S3 method for class 'dendrogram'
plotCoords.plot(name, object, call, envir, ...)
## S3 method for class 'mca'
plotCoords.plot(name, object, call, envir, ...)

plotCoords.biplot(name, object, call, envir, ...)
## Default S3 method:
plotCoords.biplot(name, object, call, envir, ...)
## S3 method for class 'prcomp'
plotCoords.biplot(name, object, call, envir, ...)
## S3 method for class 'princomp'
plotCoords.biplot(name, object, call, envir, ...)

## S3 method for class 'qqmath'
plotCoords(name, object, call, envir, panel.args, ...)
## S3 method for class 'cloud'
plotCoords(name, object, call, envir, panel.args, ...)
## S3 method for class 'parallel'
plotCoords(name, object, call, envir, panel.args, ...)
## S3 method for class 'splom'
plotCoords(name, object, call, envir, panel.args,
    packet, ...)

Arguments

name	The class of this object is the name of the plot function. Hence methods can be defined for different plot functions.
object	the object passed as first argument to the plot call.
call	the plot call.
envir	environment containing objects referenced by the call. Call arguments should be evaluated in this environment.
panel.args	passed for Lattice plots only: panel arguments for the relevant panel.
packet	passed for Lattice plots only: packet number for which to return data (corresponds to panel.args).
data	passed for non-Lattice plots only: a "data" argument, or NULL, to be used in evaluating call arguments (in addition to envir).
...	ignored.

Details

None yet...

Value

a list with components:

x, y	data point coordinates (in native panel / user coordinates).
subscripts	(optional) data point subscripts.

Author(s)

Felix Andrews [e-mail]

See Also

xyData, xy.coords

Examples

## Note, these are not designed to be called directly;
## they are used internally in playwith().
## But for demonstration purposes:
pargs <- trellis.panelArgs(qqmath(rnorm(20)), packet = 1)
plotCoords(structure("qqmath", class = "qqmath"),
           call = quote(qqmath(rnorm(20))), envir = new.env(),
           panel.args = pargs)

playwith documentation built on May 29, 2017, 12:28 p.m.