ID {GCDkit} | R Documentation |
Identification/labelling of individual data points on plots.
ID(x, y, labs = getOption("gcd.ident"), offset = 0.4, col = "gray30", cex = 1)
x, y |
vector with x-y coordinates of the data points |
labs |
text to label individual data points, see details |
offset |
distance (in char widths) between label and identified points. |
col |
colour of the text |
cex |
its size |
In GCDkit, the option 'ident
' determines whether the user wishes
to identify data points on binary and ternary plots. The default is zero, which
means no identification.
If 'ident
' differs from zero, internal function 'ID
' can be invoked.
Its parameter labs
is either a single number, or character vector.
In the former case, the variable 'labs
' contains either 1
(identification by sample name), or the sequential number of the column
in the data frame 'labels
' increased by one (identification by a user-
defined label).
Alternatively, a character vector labs
can be used to specify the text
directly.
None.
Vojtěch Janoušek, vojtech.janousek@geology.cz
getOption("gcd.ident") # yields the current value of the given option