CODEWITHSUNDEEP
rggplot2
mahengyang
mahengyang

Reputation: 289

plot data have aready be statisticed with ggplot

original data

a = as.data.frame((cbind(c('a','a','b','a'),c(0,0,1,1))))
a
  V1 V2
1  a  0
2  a  0
3  b  1
4  a  1

plot a bar

ggplot(data=a,aes(x=V1,fill=factor(V1))) + geom_bar()

then i got this

enter image description here

but if i convert the data to this

a
  V1 V2 V2.number
1 a   0   2
2 a   1   1
3 b   1   1

i do this is becuse data is too big,i have to summary it

how could i get a picture like before?

Upvotes: 0

Views: 132

Answers (2)

Didzis Elferts
Didzis Elferts

Reputation: 98449

Use column V2.number as y values and add argument stat="identity" to geom_bar().

ggplot(a,aes(V1,V2.number,fill=factor(V2)))+geom_bar(stat="identity")

Upvotes: 0

Roland
Roland

Reputation: 132706

Use stat_identity:

ggplot(data=a,aes(x=V1, y=V2.number, fill=factor(V2))) + 
      geom_bar(stat="identity")

Upvotes: 1

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