默认情况下,图例框/键与图例标题的左侧对齐。由于我有很长的传奇头衔,我想将它与中心对齐。我试过theme
和guide_legend
没有任何成功。任何建议,将不胜感激。谢谢!如何将图例框对齐ggplot2中的图例标题中间?
数据
df <- structure(list(Flow = c(0.992762, 0.802408, 0.9826, 0.754863, 0.174542, 0.056777), Coef = c(0.62, 0.49, 0.38, 0.59, 0.25, 0.67 ), VeryLongLegendTitle = c(4.47680710313542, 18.8500193246859, 5.82742564783431, 23.3217237977105, 13.0155332302148, 88.4960885143824 )), class = "data.frame", row.names = c(NA, -6L), .Names = c("Flow", "Coef", "VeryLongLegendTitle"))
代码
library(ggplot2) p1 <- ggplot(df, aes(x = Flow, y = Coef, color = VeryLongLegendTitle)) + xlab(NULL) + scale_x_continuous(limits = c(0.0, 1.0), breaks = c(0.25, 0.75)) + geom_point(size = 2, alpha = 0.8) + theme_bw(base_size = 14) + theme(axis.text.x = element_text(angle = 0, vjust = 0.5)) p1 p1 + theme(legend.title.align = 0.5) p1 + theme(legend.title = element_text(hjust = 0.5)) p1 + guides(color = guide_legend(title.hjust = 0.5))
你会考虑一个水平的传说吗?看起来像试图垂直这将是不必要的复杂,更不用说浪费图表空间。 – www
@www:我会,如果我只需要一个情节。然而,我的最终情节由大约16个(4x4)个人小块组成。剧情的每一行都有不同的传说。把传说放在正确的位置是我唯一的选择。谢谢! – Tung