是否在R中以45度角在箱形图中插入标签？

Question

boxplot（）命令中是否可以将标签旋转45度角？

我意识到las = 2命令将它们旋转为垂直于x轴，但是我希望它们成45度角。

Answer 1

怎么样：

# Some sample data
x <- list(x = rnorm(100, 2), y = rnorm(100, 4));
# Plot without x axis
boxplot(x, xaxt = "n");
# Add axis labels rotated by 45 degrees
text(seq_along(x), par("usr")[3] - 0.5, labels = names(x), srt = 45, adj = 1, xpd = TRUE);

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PS。 或者在ggplot更容易/更ggplot ：

require(ggplot2);
require(reshape2);
df <- melt(x);
ggplot(df, aes(L1, value)) + geom_boxplot() + theme(axis.text.x = element_text(angle = 45, hjust = 1));