| parcoord {MASS} | R Documentation |
Parallel coordinates plot
parcoord(x, col = 1, lty = 1, ...)
x |
a matrix or data frame who columns represent variables. |
col |
A vector of colours, recycled as necessary for each observation. |
lty |
A vector of line types, recycled as necessary for each observation. |
... |
Further graphics parameters which are passed to matplot.
|
None.
a parallel coordinates plots is drawn.
Wegman, E. J. (1990) Hyperdimensional data analysis using parallel coordinates. Journal of the American Statistical Association, 85, 664–675.
# The function is currently defined as
function(x, col = 1, lty = 1, ...)
{
x <- apply(x, 2, function(x) (x - min(x))/(max(x) - min(x)))
matplot(1:ncol(x), t(x), type = "l", col = col, lty = lty,
xlab = "", ylab = "", axes = FALSE, ...)
axis(1, at = 1:ncol(x), labels = dimnames(x)[[2]])
for(i in 1:ncol(x))
lines(c(i, i), c(0, 1), col = "grey70")
invisible()
}