ax.isolab: Isotope delta notation label

In thomas-muench/tmlibr: My Personal R Library of Miscellaneous Auxiliary Functions.

Description

Provides the axis label for isotopic composition in delta notation and units of permil.

Usage

ax.isolab(x = "oxy", font = par()$font.axis)

Arguments

x	either a character string to set the isotopic species, or a general character string to use as axis label; see details. Defaults to oxygen isotopic composition.
font	An integer which specifies which font to use for text. Defaults to the axis font currently set by par; see ?par for the available options.

Details

If x is set to "oxy" or "dtr", axis labels are formatted according to the delta notation for oxygen or deuterium isotopic composition, respectively; else, x is used directly as the axis label variable.

Value

A language object with the axis label.

Author(s)

Thomas Münch

See Also

bquote

Examples

plot(1 : 10, xlab = ax.isolab(), ylab = ax.isolab("dtr"))
plot(1 : 10, xlab = ax.isolab(font = 2),
             ylab = ax.isolab("d-excess", font = 2))

thomas-muench/tmlibr documentation built on May 26, 2019, 10:36 a.m.