piper.text {plotrix} | R Documentation |
Displays a character string on the Piper diagram.
piper.text(ca,mg,so4,cl,ions=data.frame(ca=ca,mg=mg,so4=so4,cl=cl),ptext, ppm=TRUE,cex=1,col=1,plot.sep=0.15,pos=4)
ca,mg,so4,cl |
Concentrations of the ions. |
ions |
data frame containing the above values. |
ptext |
The character string. |
ppm |
Whether the concentrations are in milligrams/liter (parts per million) or milliequivalents. |
cex |
Expansion for the text. |
col |
Colors for the text. |
plot.sep |
The offsets. |
pos |
The position of the string relative to the data point. |
nil
Mike Cheetham