piper.diagram {plotrix} | R Documentation |
Displays a Piper diagram.
piper.diagram(ca,mg,so4,cl,ions=data.frame(ca=ca,mg=mg,so4=so4,cl=cl), sites=1:NROW(ions),new=FALSE,ppm=TRUE,chull=FALSE,tcsep=0.2,pch=3, main="",cex.lab=0.7,cex.tck=0.6,cex.pch=1,grid=TRUE,col=NA,ticklength=0.03, lwd.frame=1,pch.lwd=0.7,lwd.grid=lwd.frame,col.box="black",col.tck=col.box, col.grid="grey")
ca,mg,so4,cl |
Concentrations of the ions. |
ions |
data frame containing the above values. |
sites |
Indices for the ions. |
new |
Whether this is a new diagram. |
ppm |
Whether the concentrations are in milligrams/liter (parts per million) or milliequivalents. |
chull |
Whether to use the chull function. |
tcsep |
Spacing for tick mark labels. |
pch |
Symbol to use for ion values. |
main |
Title for the diagram. |
cex.lab |
Expansion for the label text. |
cex.tck |
Expansion for the tick text. |
cex.pch |
Expansion for the point text. |
grid |
Whether to display a grid. |
col |
Colors for the points. |
ticklength |
Length for the ticks. |
lwd.frame |
Line width for the frame. |
pch.lwd |
Line width for the symbols. |
lwd.grid |
Line width for the grid. |
col.box |
Color for the box. |
col.tck |
Color for the ticks. |
col.grid |
Color for the grid. |
The return value from piper.points.
Mike Cheetham