TraMineR (version 2.2-10)

seqlegend: Plot a legend for the states in a sequence object

Description

Plots a legend for the states in a sequence object. Useful if several graphics are plotted together and only one legend is necessary. Unless specified by the user, the cpal and labels attributes of the sequence object are used for the colors and text appearing in the legend (see seqdef).

Usage

seqlegend(seqdata, with.missing = "auto", cpal = NULL, missing.color = NULL,
  ltext = NULL, position = "topleft", cex = 1, boxes=TRUE, fontsize, ...)

Value

Coordinate values returned by the legend function.

Arguments

seqdata

a state sequence object (of class stslist) as returned by the seqdef function.

with.missing

logical: if set to "auto" (default), a legend for the missing state is added automatically if one or more of the sequences in seqdata contains a missing state. If TRUE a legend for the missing state is added in any case. Setting to FALSE omits the legend for the missing state.

cpal

alternative color palette to use for the states. If user specified, a vector of colors with number of elements equal to the number of distinct states. By default, the 'cpal' attribute of the 'seqdata' sequence object is used (see seqdef).

missing.color

alternative color for representing missing values inside the sequences. By default, this color is taken from the "missing.color" attribute of the sequence object being plotted.

ltext

optional description of the states to appear in the legend. Must be a vector of character strings with number of elements equal to the number of distinct states. If unspecified, the 'labels' attributes of the 'seqdata' sequence object is used (see seqdef).

position

the position of the legend in the graphic area. For accepted values, see the x argument of legend. Defaults to "topleft".

cex

size of the font for the labels. A value less than 1 decreases the font size, a value greater than 1 increases the font size. Defaults to 1.

boxes

logical: should the colors be displayed in small square boxes? Default is TRUE. If FALSE, colors are shown using small line segments of by default length .4 and width 15. The latter can be changed by means of the lwd and seg.len par arguments.

fontsize

Deprecated. Use cex instead.

...

optional arguments passed to the legend function.

Author

Alexis Gabadinho and Gilbert Ritschard

Details

When x, legend, or col arguments are provided, they supersede respectively the position, ltext, and cpal values.

Examples

## Loading the 'actcal' example data set
## and defining a sequence object with
## activity statuses from Jan. to Dec. 2000 (columns 13 to 24)
## of first 100 cases.
data(actcal)
actcal.seq <- seqdef(actcal[1:100,13:24],
	labels=c("> 37 hours", "19-36 hours", "1-18 hours", "no work"))

## Plotting the sequences frequency,
## the states distribution
## and the legend
par(mfrow=c(2,2))
seqIplot(actcal.seq, sortv="from.start", with.legend=FALSE)
seqfplot(actcal.seq, pbarw=TRUE, with.legend=FALSE)
seqdplot(actcal.seq, with.legend=FALSE)
seqlegend(actcal.seq)