psRadialPlot: Pseudo radial plot drawing

In numOSL: Numeric Routines for Optically Stimulated Luminescence Dating

Pseudo radial plot drawing

Description

Drawing a pseudo (simplified) radial plot.

Usage

psRadialPlot(EDdata, addsigma = 0, dose = NULL, 
             zmin = NULL, zmax = NULL, ntick = 6, 
             digits = 2, pcolor = "blue", psize = 1, 
             rg = 2, zlabel = "De (Gy)")

Arguments

EDdata	matrix(required): a two-column matrix (i.e., equivalent dose values and associated standard errors)
addsigma	numeric(with default): additional uncertainty
dose	vector(optional): dose population(s) to be drawn
zmin	numeric(with default): lower limit on z-axis
zmax	numeric(with default): upper limit on z-axis
ntick	integer(with default): desired number of ticks in z-axis
digits	integer(with default): number of decimal places or significant digits for values shown in z-axis
pcolor	character(with default): color of a data point, input colors() to see more available colors
psize	numeric(with default): size of a data point
rg	integer(with default): range of a dose population, 0=dose, 1=dose+/-sigma, 2=dose+/-2sigma
zlabel	character(with default): title for the z-axis

Details

Function psRadialPlot is used for drawing a simplified radial plot in which the z-axis is a straight line. The pseudo radial plot is easier to construct compared to the regular radial plot. This function can be adopted to display estimates that have different error estimates in any field of the analytical sciences. Note that the function handles datasets in log-scale, so any minus observation is not allowed.

Value

Return a pseudo radial plot

References

Galbraith RF, 1988. Graphical display of estimates having differing standard errors. Technometrics, 30(3): 271-281.

Galbraith RF, 1994. Some applications of radial plots. Journal of the American Statistical Association, 89(428): 1232-1242.

Galbraith RF, 2010. On plotting OSL equivalent doses. Ancient TL, 28(1): 1-10.

Galbraith RF, Roberts RG, Laslett GM, Yoshida H, Olley JM, 1999. Optical dating of single grains of quartz from Jinmium rock shelter, northern Australia. Part I: experimental design and statistical models. Archaeometry, 41(2): 339-364.

See Also

dbED; RadialPlotter; EDdata

Examples

   data(EDdata)
   psRadialPlot(EDdata$al3, addsigma=0.10, 
                dose=c(39.14, 51.27, 79.14), digits=1,
                zmin=30, zmax=100, ntick=10, rg=1)

numOSL documentation built on Sept. 18, 2023, 9:07 a.m.