有没有快速的方法可以将表格添加到我的ggplot2图表中?我希望此表具有scale_x_continuous()
中指定的相同断点处的每一行的值,但旁边的百分比(%)符号。我的最终目标是创建如下图所示的内容。但是,我不知道如何添加表格。
以下代码块只在ggplot2中生成两行,应该足以为我提供一个示例:
require(ggplot2)
df <- data.frame(a = seq(0, 90, 10), b = seq(10, 100, 10))
df.plot <- ggplot(data = df, aes(x = seq(1, 100, 10))) + geom_line(aes(y = a), colour = 'red') +
geom_line(aes(y = b), colour = 'blue') + scale_x_continuous(breaks = seq(0,100,10))
df.plot
类似的问题被问到here,但给出的答案更多的是一种解决方法,对于有2行的表格看起来不太好。我将要弄乱Brian Diggs提供的线索,但我想我会发布这个以防任何人已经做过这样的事情。任何帮助将不胜感激!
编辑:感谢@baptiste帮助我解决这个问题。我在下面发布了自己的回复,完成了他的开始。
答案 0 :(得分:9)
以下是学习者使用的策略的基本示例:
require(ggplot2)
df <- data.frame(a = seq(0, 90, 10), b = seq(10, 100, 10))
df.plot <- ggplot(data = df, aes(x = seq(1, 100, 10))) +
geom_line(aes(y = a), colour = 'red') +
geom_line(aes(y = b), colour = 'blue') +
scale_x_continuous(breaks = seq(0,100,10))
# make dummy labels for the table content
df$lab <- month.abb[ceiling((df$a+1)/10)]
df.table <- ggplot(df, aes(x = a, y = 0,
label = lab, colour = b)) +
geom_text(size = 3.5) +
theme_minimal() +
scale_y_continuous(breaks=NULL)+
theme(panel.grid.major = element_blank(), legend.position = "none",
panel.border = element_blank(), axis.text.x = element_blank(),
axis.ticks = element_blank(),
axis.title.x=element_blank(),
axis.title.y=element_blank())
gA <- ggplotGrob(df.plot)
gB <- ggplotGrob(df.table)[6,]
gB$heights <- unit(1,"line")
require(gridExtra)
gAB <- rbind(gA, gB)
grid.newpage()
grid.draw(gAB)
答案 1 :(得分:6)
这是一个脚本,用于创建我要设置的常规表。请注意,我通过更改每行scale_y_continuous
下的名称来包含表格标题。
require(ggplot2)
require(gridExtra)
df <- data.frame(a = seq(0, 90, 10), b = seq(10, 100, 10))
df.plot <- ggplot(data = df, aes(x = seq(1, 100, 10))) +
geom_line(aes(y = a), colour = 'red') +
geom_line(aes(y = b), colour = 'blue') +
scale_x_continuous(breaks = seq(0,100,10))
# make dummy labels for the table content
lab.df <- data.frame(lab1 = letters[11:20],
lab2 = letters[1:10])
df.table1 <- ggplot(lab.df, aes(x = lab1, y = 0,
label = lab1)) +
geom_text(size = 5, colour = "red") +
theme_minimal() +
scale_y_continuous(breaks=NULL, name = "Model Lift") +
theme(panel.grid.major = element_blank(), legend.position = "none",
panel.border = element_blank(), axis.text.x = element_blank(),
axis.ticks = element_blank(),
axis.title.x=element_blank(),
axis.title.y=element_text(angle = 0, hjust = 5))
df.table2 <- ggplot(lab.df, aes(x = lab2, y = 0,
label = lab2)) +
geom_text(size = 5, colour = "blue") +
theme_minimal() +
scale_y_continuous(breaks=NULL, name = "Random")+
theme(panel.grid.major = element_blank(), legend.position = "none",
panel.border = element_blank(), axis.text.x = element_blank(),
axis.ticks = element_blank(),
axis.title.x=element_blank(),
axis.title.y=element_text(angle = 0, hjust = 3.84))
# silly business to align the two plot panels
gA <- ggplotGrob(df.plot)
gB <- ggplotGrob(df.table1)
gC <- ggplotGrob(df.table2)
maxWidth = grid::unit.pmax(gA$widths[2:3], gB$widths[2:3], gC$widths[2:3])
gA$widths[2:3] <- as.list(maxWidth)
gB$widths[2:3] <- as.list(maxWidth)
gC$widths[2:3] <- as.list(maxWidth)
grid.arrange(gA, gB, gC, ncol=1, heights=c(10, .3, .3))