1
考慮以下晶格例之間線的寬度:調整板
library(lattice)
x <- c(1:10, 1:10)
y <- c(10:1, 10:1)
z <- c(1:10, seq(1,20, by=2))
a = c(rep("one",10),rep("two",10))
DF <- data.frame(x, y, z, a)
xyplot(y ~ x | a, groups = z < 5, data = DF, col = c("black", "red"),
pch=20, cex=0.3)
我的問題是:如何能夠增加垂直線 分離板的tickness?