gpairs: Scatterplot matrices
In raredd/plotr: More plotting functions and examples

gpairs

R Documentation

Scatterplot matrices

Description

A matrix of scatterplots is produced.

Usage

gpairs(x, ...)

## Default S3 method:
gpairs(
  x,
  labels,
  panel = points,
  ...,
  lower.panel = panel,
  upper.panel = panel,
  diag.panel = NULL,
  text.panel = textPanel,
  label.pos = 0.5 + has.diag/3,
  line.main = 3,
  cex.labels = NULL,
  font.labels = 1,
  row1attop = TRUE,
  gap = 1,
  log = "",
  grid = TRUE,
  col.grid = "grey90",
  col.acc = "white"
)

## S3 method for class 'formula'
gpairs(
  formula,
  data = NULL,
  ...,
  subset,
  na.action = stats::na.pass,
  grid = TRUE,
  col.grid = "grey90",
  col.acc = "white"
)

Arguments

`x`	the coordinates of points given as numeric columns of a matrix or data frame. Logical and factor columns are converted to numeric in the same way that `data.matrix` does.
`...`	arguments to be passed to or from methods. Also, graphical parameters can be given as can arguments to `plot` such as `main`. `par("oma")` will be set appropriately unless specified.
`labels`	the names of the variables.
`panel`	`function(x, y, ...)` which is used to plot the contents of each panel of the display.
`lower.panel, upper.panel`	separate panel functions (or `NULL`) to be used below and above the diagonal respectively.
`diag.panel`	optional `function(x, ...)` to be applied on the diagonals.
`text.panel`	optional `function(x, y, labels, cex, font, ...)` to be applied on the diagonals.
`label.pos`	`y` position of labels in the text panel.
`line.main`	if `main` is specified, `line.main` gives the `line` argument to `mtext()` which draws the title. You may want to specify `oma` when changing `line.main`.
`cex.labels, font.labels`	graphics parameters for the text panel.
`row1attop`	logical. Should the layout be matrix-like with row 1 at the top, or graph-like with row 1 at the bottom? The latter (non default) leads to a basically symmetric scatterplot matrix.
`gap`	distance between subplots, in margin lines.
`log`	a character string indicating if logarithmic axes are to be used, see `plot.default` or a numeric vector of indices specifying the indices of those variables where logarithmic axes should be used for both x and y. `log = "xy"` specifies logarithmic axes for all variables.
`grid`	logical; if `TRUE`, a background grid will be drawn
`col.grid`	`grid` color
`col.acc`	`grid` accent color
`formula`	a formula, such as `~ x + y + z`. Each term will give a separate variable in the pairs plot, so terms should be numeric vectors. (A response will be interpreted as another variable, but not treated specially, so it is confusing to use one.)
`data`	a data.frame (or list) from which the variables in `formula` should be taken.
`subset`	an optional vector specifying a subset of observations to be used for plotting.
`na.action`	a function which indicates what should happen when the data contain `NA`s. The default is to pass missing values on to the panel functions, but `na.action = na.omit` will cause cases with missing values in any of the variables to be omitted entirely.