该项目:我目前正在尝试构建一个Shiny App,允许用户生成图表,他们可以修改检查的时间段,选择要按时间段和感兴趣的国家查看的变量 .

我目前构建的应用程序没有任何问题,但我正在努力增加置信区间 . 我相信这是因为数据已从长格式转换为宽格式 . 请参阅下面的随机数据样本:

country_name year   variable        value   variable_low           value_low variable_high       value_high
 Uruguay    2002    v2x_delibdem    0.851   v2x_partipdem_codelow   0.724   v2x_partipdem_codehigh   0.796
 Pakistan   2014    v2x_delibdem    0.248   v2x_egaldem_codelow     0.119   v2x_libdem_codehigh      0.312
 Costa Rica 1992    v2x_delibdem    0.864   v2x_polyarchy_codelow   0.882   v2x_partipdem_codehigh  0.691
 Botswana   2005    v2x_delibdem    0.527   v2x_libdem_codelow      0.518   v2x_libdem_codehigh     0.626
 Brazil     1979     v2x_egaldem    0.116   v2x_partipdem_codelow   0.147   v2x_delibdem_codehigh   0.105
 Uruguay    1975     v2x_egaldem    0.207   v2x_egaldem_codelow     0.178   v2x_polyarchy_codehigh  0.117
 Niger      1970     v2x_libdem     0.154   v2x_egaldem_codelow     0.149   v2x_libdem_codehigh     0.176
 Romania    2009    v2x_partipdem   0.478   v2x_partipdem_codelow   0.422   v2x_polyarchy_codehigh  0.717
 Thailand   1997    v2x_partipdem   0.338   v2x_polyarchy_codelow   0.481   v2x_polyarchy_codehigh  0.617
 Peru       1975    v2x_polyarchy   0.104   v2x_egaldem_codelow     0.076   v2x_partipdem_codehigh  0.078

value_low和value_high是variable_low和variable_high的熔化值 . 这些是置信区间的上限和下限 .

当我运行这个ggplot2代码时:

myColors <- brewer.pal(5,"Set1")
names(myColors) <- levels(dat$variable)
colScale <- scale_colour_manual(name = "Variable",values = myColors)

ggplot(filter(dat, country_name == "Argentina", variable %in%c("v2x_delibdem","v2x_egaldem"))) +
geom_line(aes(x=year, y=value, group = variable, color = variable), size = 1)+ 
geom_point(aes(x=year, y=value, group = variable, color = variable), size = 3)+
geom_ribbon(aes(x=year, ymin=value_low, ymax=value_high, group = variable, color = variable), linetype=2, alpha=0.1)+
colScale +
scale_x_continuous(breaks=pretty_breaks(n=10),limits=c(1970,2015))+
scale_y_continuous("Index Score", breaks = scales::pretty_breaks(n = 10),limits=c(0, 1))+
theme(text = element_text(size=15))

This is the result:

显然我的方法不起作用 . 我想知道是否有人有经验在geom_line图表周围添加置信区间丝带,绘制多个变量 .