RStudio中如何解决分类多组ggboxplot的X轴标签重叠问题

• 先修正代码语法问题：你原有代码中ggboxplot()和stat_compare_means()之间缺少连接符+，会导致显著性标记无法叠加到图上，已在后续示例中修正。
• 方案1：旋转X轴标签（最常用）
  调整X轴文本倾斜角度，兼顾可读性和排版合理性，修改后代码如下：

library(ggpubr)
my_comparisons <- list(c("MND", "NNC"),c("MND", "OND"),c("NNC", "OND"))
ggboxplot(subset(rips, !is.na(Tissue)), x = "Tissue", y = "ENST00000504942.6",
          color = "Tissue", palette = "jco",
          ylab = "Expression of ENST00000504942.6", xlab = "Tissue",
          add = "jitter") +
  stat_compare_means(comparisons = my_comparisons) +
  # 调整X轴标签角度、对齐方式和字号
  theme(axis.text.x = element_text(angle = 45, hjust = 1, size = 9))

• 方案2：翻转坐标轴做横向箱线图
  如果标签字符数较多，旋转后仍显示不全，可以直接交换X/Y轴位置，标签纵向排列完全不会重叠：

library(ggpubr)
my_comparisons <- list(c("MND", "NNC"),c("MND", "OND"),c("NNC", "OND"))
ggboxplot(subset(rips, !is.na(Tissue)), x = "Tissue", y = "ENST00000504942.6",
          color = "Tissue", palette = "jco",
          ylab = "Expression of ENST00000504942.6", xlab = "Tissue",
          add = "jitter") +
  stat_compare_means(comparisons = my_comparisons) +
  # 翻转坐标轴
  coord_flip()

• 方案3：简化X轴标签
  如果是标签本身命名过长，可手动替换为缩写简化显示：

# 在原有绘图代码后叠加以下层级即可，替换为你实际的标签和对应缩写
+ scale_x_discrete(labels = c("原始长标签1" = "缩写1", "原始长标签2" = "缩写2"))

内容的提问来源于stack exchange，提问作者Niki