Symbolize Volume Fraction within a Soil Profile Collection Plot

Symbolize volume fraction on an existing soil profile collection plot.

Usage

addVolumeFraction(
  x,
  colname,
  res = 10,
  cex.min = 0.1,
  cex.max = 0.5,
  pch = 1,
  col = "black"
)

Arguments

x

a SoilProfileCollection object

colname

character vector of length 1, naming the column containing volume fraction data (horizon-level attribute). Values should be within 0-100 percent.

res

integer, resolution of the grid used to symbolize volume fraction

cex.min

minimum symbol size

cex.max

maximum symbol size

pch

integer, plotting character code

col

symbol color, either a single color or as many colors as there are horizons in x

Details

This function can only be called after plotting a SoilProfileCollection object. Details associated with a call to plotSPC() are automatically accounted for within this function: e.g. plot.order, width, etc..

Note

It may be necessary to adjust both res, cex.min, and cex.max for optimal legibility.

See also

plotSPC()

Author

D.E. Beaudette