我正在尝试将多个具有不同外观的图表进行对齐。我的问题有点小,但很烦人:我可以使得所有的绘图区域和各自的外观对齐,但是外观条却宽度不同。如果外观标签的长度不同,那么外观条的大小会根据文本适应外观大小。到目前为止我还没有找到一种方法来在对齐多个图表时使所有的外观条宽度相同。
这里有一个示例,这就是我想要排列的类型图表及我的努力去对齐它们:
这里有一个示例,这就是我想要排列的类型图表及我的努力去对齐它们:
library(data.table)
library(ggplot2)
library(foreach)
library(stringr)
library(cowplot)
# example data to show how aligning faceted plots is not quite right
plotvars = c(paste0("plot1_var", 1:7), paste0("plot2_var",1:5), paste0("plot3_var",1:10))
data =
foreach(p=plotvars,.combine = "rbind") %do% {
d = data.table(plot = rep(str_extract(p,pattern = "plot[[:digit:]]"),2),
plot_variables = rep(p,2),
fill_categories = c("fill1","fill2"),
number = sample(1:1000, size = 2))
d[, facet_variables := ifelse(plot=="plot1",
rep(sample(paste0("facet",1:3),size=1),2),
ifelse(plot=="plot2",
rep(sample(paste0("facet_title",1:3),size=1),2),
ifelse(plot=="plot3",
rep(sample(paste0("facet_title_longer",1:3),size=1),2),
NA)))]
d
}
# function to make stacked barplots with facets + coord_flip
make_plot = function(data, plot_var) {
ggplot(data[plot==plot_var],
aes(x=plot_variables,
y=number,
fill=fill_categories))+
geom_bar(stat="identity")+
coord_flip()+
facet_grid(facet_variables ~ .,
space="free",
scales="free")+
theme(strip.text.y = element_text(angle=0),
legend.position = "none")
}
p1 = make_plot(data=data,plot_var="plot1")
p1
p2 = make_plot(data=data,plot_var="plot2")
p2
p3 = make_plot(data=data,plot_var = "plot3")
p3
# using 'cowplot::plot_grid' gives strange re-sizing of individual bars
cowplot::plot_grid(p1,p2,p3, ncol=1,nrow=3,align = "hv")
# try gtable_rbind version
g1=ggplotGrob(p1)
g2=ggplotGrob(p2)
g3=ggplotGrob(p3)
# this plot keeps the bar widths the correct size, but the facets are still incorrectly different widths.
ggdraw(gridExtra::gtable_rbind(g1,g2,g3))
如何使维度条在不同图表中宽度相同?