logPlot: Make a nice log-log plot (base 10)

In richardsc/crMisc: Miscellaneous scripts for Clark Richards

Description

Make a nice log-log plot (base 10), with exponent labels and logged gridlines.

Usage

logPlot(x, y, xlim=NULL, ylim=NULL,
	   majGrid=TRUE, minGrid=TRUE, 
	   minGrid.ticks=TRUE, 
	   majGrid.lty=2, minGrid.lty=majGrid.lty, 
	   majGrid.lwd=1, minGrid.lwd=majGrid.lwd/2, 
	   majGrid.col='lightgrey', minGrid.col=majGrid.col, 
	   xlab='', ylab='', labelType='exponent', 
	   asp=1, 
	   ...)

Arguments

x,y	the coordinates of points in the plot, not log-transformed.
xlim, ylim	optional xlim and ylim
majGrid,minGrid	logicals specifying whether to draw major and minor grids.
minGrid.ticks	logical specifying whether to draw the minor grid ticks on the axes.
majGrid.lty,majGrid.lwd,majGrid.col,minGrid.lty,minGrid.lwd,minGrid.col	line parameters for the grid.
xlab,ylab	x and y labels.
labelType	default is an exponent with base 10, otherwise just labels with the number (e.g. 0.001).
asp	the aspect ratio of the plot. Defaults to 1 because otherwise it will probably just look ugly.
...	other plotting parameters.

Details

Makes a nice log-log plot with major and minor grids, as well as nicely formatting axis labels. Works best for data that span at least one order of magnitude (for labelling).

Value

No return value.

Author(s)

Clark Richards

Examples

x <- abs(rnorm(1000))
y <- abs(rnorm(1000))
logPlot(x, y, xlab='x', ylab='y')

richardsc/crMisc documentation built on May 27, 2019, 7:59 a.m.