# add interactive polygons to a ggplot -------
library(ggplot2)
library(ggiraph)
dataset = data.frame(
x1 = c(1, 3, 1, 5, 4),
x2 = c(2, 4, 3, 6, 6),
y1 = c(1, 1, 4, 1, 3),
y2 = c(2, 2, 5, 3, 5),
t = c('a', 'a', 'a', 'b', 'b'),
r = c(1, 2, 3, 4, 5),
tooltip = c("ID 1", "ID 2", "ID 3", "ID 4", "ID 5"),
uid = c("ID 1", "ID 2", "ID 3", "ID 4", "ID 5"),
oc = rep("alert(this.getAttribute(\"data-id\"))", 5)
)
gg_rect = ggplot() +
scale_x_continuous(name = "x") +
scale_y_continuous(name = "y") +
geom_rect_interactive(
data = dataset,
mapping = aes(
xmin = x1,
xmax = x2,
ymin = y1,
ymax = y2,
fill = t,
tooltip = tooltip,
onclick = oc,
data_id = uid
),
color = "black",
alpha = 0.5,
linejoin = "bevel",
lineend = "round"
) +
geom_text(
data = dataset,
aes(x = x1 + (x2 - x1) / 2, y = y1 + (y2 - y1) / 2, label = r),
size = 4
)
x <- girafe(ggobj = gg_rect)
if (interactive()) {
print(x)
}
# add interactive tiles to a ggplot -------
library(ggplot2)
library(ggiraph)
df <- data.frame(
id = rep(c("a", "b", "c", "d", "e"), 2),
x = rep(c(2, 5, 7, 9, 12), 2),
y = rep(c(1, 2), each = 5),
z = factor(rep(1:5, each = 2)),
w = rep(diff(c(0, 4, 6, 8, 10, 14)), 2)
)
p <- ggplot(df, aes(x, y, tooltip = id)) + geom_tile_interactive(aes(fill = z))
x <- girafe(ggobj = p)
if (interactive()) {
print(x)
}
# correlation dataset ----
cor_mat <- cor(mtcars)
diag(cor_mat) <- NA
var1 <- rep(row.names(cor_mat), ncol(cor_mat))
var2 <- rep(colnames(cor_mat), each = nrow(cor_mat))
cor <- as.numeric(cor_mat)
cor_mat <- data.frame(
var1 = var1,
var2 = var2,
cor = cor,
stringsAsFactors = FALSE
)
cor_mat[["tooltip"]] <-
sprintf("`%s` vs `%s`:%.03f", var1, var2, cor)
p <- ggplot(data = cor_mat, aes(x = var1, y = var2)) +
geom_tile_interactive(aes(fill = cor, tooltip = tooltip), colour = "white") +
scale_fill_gradient2_interactive(
low = "#BC120A",
mid = "white",
high = "#BC120A",
limits = c(-1, 1),
data_id = "cormat",
tooltip = "cormat"
) +
coord_equal()
x <- girafe(ggobj = p)
if (interactive()) {
print(x)
}
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