R: Default Panel Function for parallel

F_1_panel.parallel {lattice} | R Documentation

## Default Panel Function for parallel

### Description

This is the default panel function for `parallel`.

### Usage

    panel.parallel(x, y, z, subscripts,
                   groups = NULL,
                   col, lwd, lty, alpha,
                   common.scale = FALSE,
                   lower,
                   upper,
                   ...,
                   horizontal.axis = TRUE,
                   identifier = "parallel")

### Arguments

`x, y` | dummy variables, ignored.
`z` | The data frame used for the plot. Each column will be coerced to numeric before being plotted, and an error will be issued if this fails.
`subscripts` | The indices of the rows of `z` that are to be displyed in this panel.
`groups` | An optional grouping variable. If specified, different groups are distinguished by use of different graphical parameters (i.e., rows of `z` in the same group share parameters).
`col, lwd, lty, alpha` | graphical parameters (defaults to the settings for `superpose.line`). If `groups` is non-null, these parameters used one for each group. Otherwise, they are recycled and used to distinguish between rows of the data frame `z`.
`common.scale` | logical, whether a common scale should be used columns of `z`. Defaults to `FALSE`, in which case the horizontal range for each column is different (as determined by `lower` and `upper`).
`lower, upper` | numeric vectors replicated to be as long as the number of columns in `z`. Determines the lower and upper bounds to be used for scaling the corresponding columns of `z` after coercing them to numeric. Defaults to the minimum and maximum of each column. Alternatively, these could be functions (to be applied on each column) that return a scalar.
`...` | other arguments (ignored)
`horizontal.axis` | logical indicating whether the parallel axes should be laid out horizontally (`TRUE`) or vertically (`FALSE`).
`identifier` | A character string that is prepended to the names of grobs that are created by this panel function.

### Details

Produces parallel coordinate plots, which are easier to understand from an example than through a verbal description. See example for `parallel`

### Author(s)

Deepayan Sarkar Deepayan.Sarkar@R-project.org

### References

Inselberg, Alfred (2009) Parallel Coordinates: Visual Multidimensional Geometry and Its Applications, Springer. ISBN: 978-0-387-21507-5.

Inselberg, A. (1985) “The Plane with Parallel Coordinates”, The Visual Computer.

### See Also

`parallel`

[Package lattice version 0.20-29 Index]