在 r 中使用 ggplot 在 y 轴上具有实际值的堆叠条形图

Question

I have tried stacked bar chart and wanted to get the real values, instead of placing bars one over the other. for example if Ac energy consumption is 193 at empty load and 175 in non ac energy consumption at empty load, then i desired to have a plot that shows the same values instead of piling one over the other where the y axis values goes to around 350. i dont want this type of graph:

The sample data is here:

a<-tribble(
~"para",       ~"energy", ~"type",

  "Empty_Load",    175, "NoAC",   
 "Half_Load"  ,   184, "NoAC",     
 "Full_Load"   ,  191, "NoAC",    
 "Empty_Load"   , 193, "AC",       
 "Half_Load"     ,206, "AC",       
 "Full_Load"     ,211, "AC"   
)

and this is what i tried:

ggplot(a,aes(x=para,y=energy))+
  geom_bar(stat="identity", aes(fill=type))

Answer 1

This will do the trick:

ggplot(a,aes(x=para,y=energy))+
  geom_bar(stat="identity", aes(fill=type), position ="dodge") #add position = "dodge" to place bars next to each other

Or like this if you want a stacked chart with the values in presented in the graph:

ggplot(a,aes(x=para,y=energy))+
  geom_bar(stat="identity", aes(fill=type)) + #add position = "dodge" to place bars next to each other
  geom_text(aes(label = energy), position = position_stack(vjust = 0.5))