Grid {astsa}R Documentation

A Better Add Grid to a Plot

Description

Adds a grid to an existing plot with major and minor ticks. Works like R graphics grid() but the grid lines are are solid and gray and minor ticks are produced by default.

Usage

Grid(nx = NULL, ny = nx, col = gray(0.9), lty = 1, lwd = par("lwd"), equilogs = TRUE, 
    minor = TRUE, nxm = 2, nym = 2, tick.ratio = 0.5, xm.grid = TRUE, ym.grid = TRUE, ...)

Arguments

nx, ny

number of cells of the grid in x and y direction. When NULL, as per default, the grid aligns with the tick marks on the corresponding default axis (i.e., tickmarks as computed by axTicks). When NA, no grid lines are drawn in the corresponding direction.

col

color of the grid lines.

lty

line type of the grid lines.

lwd

line width of the grid lines.

equilogs

logical, only used when log coordinates and alignment with the axis tick marks are active. Setting equilogs = FALSE in that case gives non equidistant tick aligned grid lines.

minor

logical with TRUE (default) adding minor ticks.

nxm, nym

number of intervals in which to divide the area between major tick marks on the x-axis (y-axis). If minor=TRUE, should be > 1 or no minor ticks will be drawn.

tick.ratio

ratio of lengths of minor tick marks to major tick marks. The length of major tick marks is retrieved from par("tck").

xm.grid, ym.grid

if TRUE (default), adds grid lines at minor x-axis, y-axis ticks.

...

other graphical parameters;

Author(s)

D.S. Stoffer

Source

The code for grid() in R graphics and minor.tick() from the Hmisc package were combined.

References

You can find demonstrations of astsa capabilities at FUN WITH ASTSA.

The most recent version of the package can be found at https://github.com/nickpoison/astsa/.

In addition, the News and ChangeLog files are at https://github.com/nickpoison/astsa/blob/master/NEWS.md.

The webpages for the texts are https://www.stat.pitt.edu/stoffer/tsa4/ and https://www.stat.pitt.edu/stoffer/tsda/.

See Also

grid


[Package astsa version 1.14 Index]