Identify points on plot
Extension of the identify function
## Default S3 method: click(x, y=NULL, label=TRUE, n=length(x), pch=19, col="orange", cex=3, ...) idplot(x, y ,..., id=list(), return.data=FALSE)
x |
X coordinates |
... |
Additional arguments parsed to |
y |
Y coordinates |
label |
Should labels be added? |
n |
Max number of inputs to expect |
pch |
Symbol |
col |
Colour |
cex |
Size |
id |
List of arguments parsed to |
return.data |
Boolean indicating if selected points should be returned |
For the usual 'X11' device the identification process is terminated by pressing any mouse button other than the first. For the 'quartz' device the process is terminated by pressing either the pop-up menu equivalent (usually second mouse button or 'Ctrl'-click) or the 'ESC' key.
Klaus K. Holst
idplot, identify
if (interactive()) {
n <- 10; x <- seq(n); y <- runif(n)
plot(y ~ x); click(x,y)
data(iris)
l <- lm(Sepal.Length ~ Sepal.Width*Species,iris)
res <- plotConf(l,var2="Species")## ylim=c(6,8), xlim=c(2.5,3.3))
with(res, click(x,y))
with(iris, idplot(Sepal.Length,Petal.Length))
}Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.