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[英]How do I get rid of my double legend in forest plot using GGPLOT2?
[英]How to get rid of whitespace in a ggplot2 plot?
我正在为出版物准备一个数字。 我通过设置xlab("")
省略了 x 标签,但是 ggplot2 会产生一个空格而不是完全删除标签。 我怎样才能摆脱空白(在下图中用红色矩形标记)?
完整代码:
ggplot(data, aes(x=Celltype, y=Mean, fill=factor(Dose), label=p.stars)) +
geom_bar(stat = "identity", position = position_dodge(width=0.9), aes(group=Dose)) +
geom_errorbar(aes(ymin = Mean - SEM, ymax = Mean + SEM), stat = "identity", position = position_dodge(width=0.9), width=0.25) +
geom_text(aes(y = Mean + SEM), size = 5, position = position_dodge(width=0.9), hjust = .5, vjust = -1) +
xlab("") +
ylab("Concentration") +
scale_fill_grey(name = "Dose") +
theme_bw()
你试过plot.margin
吗?
library(grid)
ggplot(data, aes(x=Celltype, y=Mean, fill=factor(Dose), label=p.stars)) +
geom_bar(stat = "identity", position = position_dodge(width=0.9), aes(group=Dose)) +
geom_errorbar(aes(ymin = Mean - SEM, ymax = Mean + SEM), stat = "identity", position = position_dodge(width=0.9), width=0.25) +
geom_text(aes(y = Mean + SEM), size = 5, position = position_dodge(width=0.9), hjust = .5, vjust = -1) +
xlab("") +
ylab("Concentration") +
scale_fill_grey(name = "Dose") +
theme_bw() +
theme(plot.margin = unit(c(1,1,0,1), "cm")) # ("left", "right", "bottom", "top")
使用theme()
删除为x轴标题分配的空间。 当你设置xlab("")
,仍然有空间为这个标题。
+ theme(axis.title.x=element_blank())
试试这个功能:
savepdf <- function(file, width=16, height=10) {
fname <- paste("figures/",file,".pdf",sep="")
pdf(fname, width=width/2.54, height=height/2.54,
pointsize=10)
par(mgp=c(2.2,0.45,0), tcl=-0.4, mar=c(3.3,3.6,1.1,1.1))
}
您还可以在创建后在生成的pdf文件中裁剪空白区域。 在Unix中,系统命令是:
pdfcrop filename.pdf filename.pdf
如果安装了标准的LaTeX发行版(Mactex或texlive),pdfcrop可以在Mac上运行。 当然,这个命令可以在R中执行如下:
system(paste("pdfcrop", filename, filename))
您还可以在 labs() 中设置 x = NULL
ggplot(data, aes(x=Celltype, y=Mean, fill=factor(Dose), label=p.stars)) +
geom_bar(stat = "identity", position = position_dodge(width=0.9), aes(group=Dose)) +
geom_errorbar(aes(ymin = Mean - SEM, ymax = Mean + SEM), stat = "identity", position = position_dodge(width=0.9), width=0.25) +
geom_text(aes(y = Mean + SEM), size = 5, position = position_dodge(width=0.9), hjust = .5, vjust = -1) +
labs(x = NULL, y = "Concentration") +
scale_fill_grey(name = "Dose") +
theme_bw()
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