scan
read.table
readLines
readRDS
CASE WHEN
fcase
:=
.()
.Rprofile
.Renviron
Makevars
其它常见的图形还要折线图、直方图、箱线图和提琴图
# 折线图 plot_ly(Orange, x = ~age, y = ~circumference, color = ~Tree, type = "scatter", mode = "markers+lines" )
图 13.3: 折线图