Nothing
## -----------------------------------------------------------------------------
library(grid)
label <- textGrob("Label",
x=unit(1, "npc") - unit(5, "mm"),
y=unit(1, "npc") - unit(5, "mm"),
just=c("right", "top"))
## ----fig.width=5, fig.height=3------------------------------------------------
library(gggrid)
ggplot(mtcars) +
geom_point(aes(disp, mpg)) +
grid_panel(label)
## ----fig.width=5, fig.height=3------------------------------------------------
rug <- function(data, coords) {
segmentsGrob(unit(1, "npc"),
coords$y,
unit(1, "npc") - unit(2, "mm"),
coords$y,
gp=gpar(lwd=2, col=rgb(0,0,0,.5)))
}
ggplot(mtcars, aes(x=disp, y=mpg)) +
geom_point() +
grid_panel(rug)
## ----fig.width=5, fig.height=3------------------------------------------------
ggplot(mtcars, aes(x=disp, y=mpg)) +
geom_point() +
grid_panel(rug) +
facet_wrap("am")
## ----fig.width=5, fig.height=3------------------------------------------------
rugGroup <- function(data, coords) {
segmentsGrob(unit(1, "npc"),
coords$y,
unit(1, "npc") - unit(2, "mm"),
coords$y,
gp=gpar(lwd=2, col=adjustcolor(data$colour, alpha=.5)))
}
ggplot(mtcars, aes(x=disp, y=mpg, colour=as.factor(am))) +
geom_point() +
grid_group(rugGroup)
## ----fig.width=5, fig.height=2------------------------------------------------
minard <- read.table("minard-troops.txt", header=TRUE)
library(vwline)
path <- function(data, coords) {
vwlineGrob(coords$x, coords$y, w=unit(coords$size, "in"),
gp=gpar(col=coords$colour[1],
fill=adjustcolor(coords$colour[1], alpha=.5)))
}
ggplot(minard,
aes(x=long, y=lat, size=survivors, colour=direction,
group=interaction(group, direction))) +
scale_size(range=c(.01, .5)) +
coord_fixed(2, clip="off") +
grid_group(path)
## ----fig.width=6, fig.height=2------------------------------------------------
path_key <- function(data, ...) {
vwlineGrob(0:1, c(.5, .5), w=unit(c(.1, .2), "in"),
gp=gpar(col=data$colour,
fill=adjustcolor(data$colour, alpha=.5)))
}
ggplot(minard) +
scale_size(range=c(.01, .5), guide="none") +
coord_fixed(2, clip="off") +
grid_group(path,
aes(x=long, y=lat, size=survivors, colour=direction,
group=interaction(group, direction)),
show.legend=TRUE,
key_glyph=path_key)
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