left. It’s possible to put the title in the middle of the chart by specifying the argumenthjust = 0.5in the functionelement_text():p + theme(plot.title = element_text(hjust = 0.5)). The optionshjust = 1andhjust = 0place titles on the right and the left side of the plot, ...
参数描述axis.title, axis.title.x, axis.title.y坐标轴标题axis.text, axis.text.x, axis.text.y坐标轴上的刻度线标签legend.text, legend.title图例项标签和图例标题plot.title, plot.subtitle, plot.caption图例题,副标题和图的标注栏strip.text, strip.text.x, strip.text.y分图标签 18.2.2.2 举例 libr...
legend.title = element_text("Cylinders"), legend.background = element_rect(fill ="grey", color = "white"), legend.key =element_blank()) ## Warning in grid.Call(C_stringMetric, as.graphicsAnnot(x$label)): font family ## 'Cylinders' not found, will use 'sans' instead ## Warning in...
library(ggtext) df <- data.frame(x = 1:3, y = 1:3) p <- ggplot(df, aes(x, y)) + geom_point() + labs(x = "x轴**加粗**") p p + theme(axis.title.x = ggtext::element_markdown()) 🌳7.2 添加文本标签向绘图中添加文本是最常见的注释形式之一。在标记异常值和其他重要点...
(title = expression(sqrt(a,b)), x = expression(bold(prod(plain(P)(X==x), x))~(km^3)), y = expression(intersect(A[i], i==1, n)~italic(H[2]*CO[3]~mol%.%L^-1)))+ theme_bw()+ theme(aspect.ratio = 1/1.5, panel.border = element_rect(linewidth = 1), panel.grid....
(mpg,package="ggplot2")# pre-set the bw theme. 提前设置主题theme_set(theme_bw())g<-ggplot(mpg,aes(cty,hwy))# Scatterplotg+geom_point()+geom_smooth(method="lm",se=F)+labs(subtitle="mpg: city vs highway mileage",y="hwy",x="cty",title="Scatterplot with overlapping points",...
## Attachingpackage:'Biostrings'## The following object is maskedfrom'package:base':## ## strsplit ## Loading requiredpackage:rtracklayer 提取染色体名字及长度: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 df<-data.frame(chromName=seqnames(BSgenome.Hsapiens.UCSC.hg38),# 染色体名字 ...
p <- ggplot(data=gapminder,mapping = aes(x = gdpPercap,y = lifeExp))p + geom_point(alpha = 0.3) +geom_smooth(method="gam") +scale_x_log10(labels=scales::dollar) +labs(x = "人均GDP",y = "期望寿命(年数)",title = "经济增长与期望寿命",subtitle = "数据点为每个国家每年",capt...
自定义外观(Customizing the Look and Feel) 前50个ggplot2可视化效果(top 50 ggplot2 Visualizations) ggplot2简介涵盖了有关构建简单ggplot以及修改组件和外观的基本知识;自定义外观是关于图像的自定义,如使用多图,自定义布局操作图例、注释;前50个ggplot2可视化效果应用在第1部分和第2部分中学到的知识来构造其他类型...
#只占了图形设备一半的宽和高的视图窗口, 定位在图形的中间位置located in # the middle of the plot. vp2 <- viewport(width = 0.5, height = 0.5, x = 0.5, y = 0.5) vp2 <- viewport(width = 0.5, height = 0.5) #一个2cm x 3cm 的视图窗口,定位在图形设备中心 ...