R: Plotting a seqdiff object.

plot.seqdiff {TraMineR} | R Documentation

## Plotting a seqdiff object.

### Description

Plot method for the sliding values returned by `seqdiff`. Plots a statistic (the Pseudo R2 by default) along the position axis.

### Usage

    ## S3 method for class 'seqdiff'
    plot(x, stat = "Pseudo R2", type = "l", ylab = stat,
      xlab = "", legend.pos = "top", ylim = NULL, xaxis = TRUE, col = NULL,
      xtstep = NULL, tick.last = NULL, legendposition, xaxt, ...)

### Arguments

`x` | an object produced by `seqdiff`
`stat` | character. Name of the statistic to be plotted. Can be any of the statistics returned by `seqdiff` or `"discrepancy"`. See details.
`type` | the line `type`, see `lines`
`ylab` | character: y-axis label.
`xlab` | character: x-axis label.
`legend.pos` | character: position of the line legend, see `legend`
`ylim` | numeric: if not `NULL`, range of the y-axis.
`xaxis` | logical: if `TRUE` an x-axis is plotted.
`col` | list of colors to use for each line.
`xtstep` | integer: optional step between tick-marks and labels on the x-axis. If unspecified, the `xtstep` attribute of the sequence object `x` is used. (see `seqdef`)
`tick.last` | Logical. Should a tick mark be enforced at the last position on the x-axis? If unspecified, the `tick.last` attribute of the `x` object is used.
`legendposition` | Deprecated. Use `legend.pos` instead.
`xaxt` | Deprecated. Use `xaxis` instead.
`...` | Additional parameters passed to `lines`

### Details

The function plots the sliding values of the requested statistic.

You can plot the evolution of two statistics by providing for instance `stat=c("Pseudo R2", "Levene")`.

Use `stat="discrepancy"` to plot the within-discrepancies.

For `"discrepancy"`, a separate line is drawn for the whole set of sequences and for each group. Those two values cannot be paired with another statistic.

### Author(s)

Matthias Studer (with Gilbert Ritschard for the help page)

### See Also

`seqdiff`

[Package TraMineR version 2.2-2 Index]