创建一个偶数段的正方形R的2 x 2图

Question

我正在尝试创建一个2 x 2正方形的图，上面有数字

将基本上是+ vs的2x2网格 -

下面产生我想要的，除了顶部正方形不是相同的高度。任何帮助将不胜感激，我无法看到这是如何做到这一点。

谢谢

df <- data.frame(matrix(ncol = 5, nrow = 0))
colnames(df) <- c("x", "y", "color","w","perc")

df[nrow(df) + 1,] = c("+","+","orange",1,77)
df[nrow(df) + 1,] = c("+","-","green",1,17)
df[nrow(df) + 1,] = c("-","+","red",1,27)
df[nrow(df) + 1,] = c("-","-","orange",1,37)

ggplot(df, aes(x = x, y = y, fill = color, label = perc)) +
  geom_bar(stat = "identity", width=1.0) +
  geom_text(size = 3, position = position_stack(vjust = 0.5)) +
  scale_fill_identity() + 
  theme(axis.text.x = element_text(angle = 45, hjust = 1))

Answer 1

听起来你正在寻找geom_tile()而不是geom_bar()。

作为旁注，您可能希望按列而不是按行创建数据框，因为前者允许您更好地控制每列的​​类。

# create data frame
df <- data.frame(
  x = c("+", "+", "-", "-"),
  y = c("+", "-", "+", "-"),
  color = c("orange", "green", "red", "orange"),
  w = rep(1, 4),
  perc = c(77, 17, 27, 37),
  stringsAsFactors = FALSE
)

# plot
ggplot(df, aes(x = x, y = y, fill = color, label = perc)) +
  geom_tile() +
  geom_text(size = 3) +
  scale_fill_identity() + 
  theme(axis.text.x = element_text(angle = 45, hjust = 1))