T.image-class: Class 'T.image'

In adegraphics: An S4 Lattice-Based Package for the Representation of Multivariate Data

Class T.image

Description

A class for the representation of a matrix or table object in which values have different colors.

Objects from the Class

T.image objects can be created by calls of the form new("T.image", ...).

The regular usage in this package is to use the table.image function.

Slots

data

a list containing data or data's name.

• dftab: the displayed values which can be table, dist or matrix in the form of a data frame, a name or a matching call

• coordsx: an integer or a vector indicating the columns of dftab kept

• coordsy: an integer or a vector indicating the rows of dftab kept

• labelsx: columns labels

• labelsy: rows labels

• frame: a positive or null integer. It is the number of the frame containing the data (used with sys.frame(..., env = data$frame)). Only if the data are not stored (i.e. data$storeData = FALSE).

• storeData: a logical indicating if the data should be stored in the returned object. If FALSE, only the names of the data arguments are stored.

trellis.par

a list of parameters for lattice call. It will be passed directly to par.settings arguments of the lattice function.

adeg.par

a list of graphical parameters, corresponding to the ones given by adegpar() function.

lattice.call

a list to create the trellis object.

g.args

a list containing some method parameters linked with the created object of ADEg.T class. The specific slots for T.image objects are:

• breaks: a vector of values to split dftab. If NULL, pretty(dftab, nclass) is used.

• nclass: an integer for the number of desired intervals, ignored if breaks is not missing.

• col: a NULL value, a color or a colors vector used for the cells.

stats

a list of internal preliminary calculations

s.misc

a list of some others internal parameters:

• breaks.update: a logical indicating if the legend breaks is updating.

Call

an object of class call

Extends

Class ADEg.T, directly.
Class ADEg, by class ADEg.T, distance 2.
Class ADEgORtrellis, by class ADEg.T, distance 3.
Class ADEgORADEgSORtrellis, by class ADEg.T, distance 3.

Methods

The methods of the father classes "ADEg.T" and "ADEg" can be used by inheritance. The specific methods for T.image are:

prepare

signature(object = "T.image"): calls the parent method (prepare for ADEg.T) and modifies some graphical parameters used by default and calculates limits and grid.

panel

signature(object = "T.image"): draws raster image.

Author(s)

Alice Julien-Laferriere, Aurelie Siberchicot [e-mail] and Stephane Dray

See Also

ADEg ADEg.T table.image

Examples

showClass("T.image")

adegraphics documentation built on Oct. 13, 2023, 5:11 p.m.