如何在 ggplot2 中创建 Marimekko/Mosaic 图 [英] How to create a Marimekko/Mosaic plot in ggplot2
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问题描述
当 x 和 y 都是分类变量时,Marimekko/Mosaic 图是一个很好的默认图.使用 ggplot 创建这些的最佳方法是什么?
我能找到的唯一参考是这篇 4yo
The Marimekko/Mosaic plot is a nice default plot when both x and y are categorical variables. What is the best way to create these using ggplot?
The only reference I could find was this 4yo blog post but this seems a bit outdated. Are there any better or easier implementations avaialable by now? The GGally package has a function ggally_ratio
but this produces something quite different:
解决方案
I had the same issue for a project some time back. My solution was to use geom_bar
together with the scales="free_x", space="free_x"
option in facet_grid
to accommodate different bar widths:
# using diamonds dataset for illustration
df <- diamonds %>%
group_by(cut, clarity) %>%
summarise(count = n()) %>%
mutate(cut.count = sum(count),
prop = count/sum(count)) %>%
ungroup()
ggplot(df,
aes(x = cut, y = prop, width = cut.count, fill = clarity)) +
geom_bar(stat = "identity", position = "fill", colour = "black") +
# geom_text(aes(label = scales::percent(prop)), position = position_stack(vjust = 0.5)) + # if labels are desired
facet_grid(~cut, scales = "free_x", space = "free_x") +
scale_fill_brewer(palette = "RdYlGn") +
# theme(panel.spacing.x = unit(0, "npc")) + # if no spacing preferred between bars
theme_void()
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