1.条形图 条形图通过垂直和水平的条形展示了类别型变量的分布 1.1普通条形图 1 library(vcd) 2 counts <- table(Arthritis$Improved) 3 barplot(counts,main='Simple Bar Plot',xlab = 'Inprovement',ylab = 'Frequency') 4 barplot(counts,main='Simple Bar Plot',xlab = 'Inprovement',ylab = 'Frequency...