Suppose I create a multiple plot with zoo, using:
index - ISOdatetime(2004, rep(1:2, 5), sample(28, 10), 0, 0, 0)
foo - zoo(rnorm(10), index)
for (i in 1:9) {
data - rnorm(10)
z1 - zoo(data, index)
foo - cbind(foo, z1)
}
plot(foo)
This creates 10 plots on one device, one for each column in
Try this (or use xyplot.zoo and write a panel function for that):
library(zoo)
set.seed(1)
tt - as.Date(paste(2004, rep(1:2, 5), sample(28, 10), sep = -))
foo - zoo(matrix(rnorm(100), 10), tt)
pnl - function(x, y, ...) {
lines(x, y, ...)
abline(h = mean(y))
}
plot(foo, panel =
