带圆圈的R热图
我想在 R 中生成一个使用圆圈的矩阵的热图可视化，以便让圆圈的颜色和直径都能提供信息。看起来像这样的东西：
这种绘图在某些计算生物学实验室中称为“泡泡糖图”，但我找不到 R 函数/包来执行此操作。
有任何想法吗？谢谢！
回答
不确定是否有提供这种开箱即用的软件包，但ggplot2可以像这样使用它：
library(ggplot2)
set.seed(42)
d <- data.frame(
x = rep(paste("Team", LETTERS[1:8]), 4),
y = rep(paste("Task", 1:4), each = 8),
value = runif(32)
)
ggplot(d, aes(x, forcats::fct_rev(y), fill = value, size = value)) +
geom_point(shape = 21, stroke = 0) +
geom_hline(yintercept = seq(.5, 4.5, 1), size = .2) +
scale_x_discrete(position = "top") +
scale_radius(range = c(1, 15)) +
scale_fill_gradient(low = "orange", high = "blue", breaks = c(0, .5, 1), labels = c("Great", "OK", "Bad"), limits = c(0, 1)) +
theme_minimal() +
theme(legend.position = "bottom",
panel.grid.major = element_blank(),
legend.text = element_text(size = 8),
legend.title = element_text(size = 8)) +
guides(size = guide_legend(override.aes = list(fill = NA, color = "black", stroke = .25),
label.position = "bottom",
title.position = "right",
order = 1),
fill = guide_colorbar(ticks.colour = NA, title.position = "top", order = 2)) +
labs(size = "Area = Time Spent", fill = "Score:", x = NULL, y = NULL)