使用R基本图形的堆积直方图 [英] Stacked Histograms Using R Base Graphics

问题描述

使用ggplot2可以很容易地创建堆叠的直方图:

Using ggplot2 it is very easy to create stacked histograms:

library(ggplot2)

ggplot(data = iris, aes(x = Sepal.Length, fill = Species)) + 
  geom_histogram(colour = 'white') 

ggplot(data = iris, aes(x = Sepal.Length, fill = Species)) + 
  geom_histogram(colour = 'white', position = 'fill')

我想知道如何仅使用 R基本图形来创建两个直方图.

I would like to know how to create both histograms using only R base graphics.

推荐答案

您可以基于Species和Sepal.Length的频率表使用barplot()生成两个图.

You can generate both plots with barplot(), based on a frequency table of Species and Sepal.Length.

# Create frequency table
tab <- table(iris$Species, iris$Sepal.Length)

# Stacked barplot
barplot(tab)

# Stacked percent barplot
barplot(prop.table(tab, 2)) # Need to convert to marginal table first

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