使用ggplot2对具有置信区间的多列数据进行条形图分组

   group  value  lower  upper
1      A    5.2    4.8    5.6
2      A    6.1    5.7    6.5
3      A    4.9    4.5    5.3
4      B    7.3    6.9    7.7
5      B    6.8    6.4    7.2
6      B    7.1    6.7    7.5

library(ggplot2)

p <- ggplot(df, aes(x = group))

p <- p + geom_bar(aes(y = value, fill = group), stat = "identity", position = "dodge")
p <- p + geom_errorbar(aes(ymin = lower, ymax = upper), width = 0.2, position = position_dodge(0.9))

p <- p + facet_wrap(~ group)

print(p)