how can i create bar chart with non continuous variable in R?

Question

Names=c(1,2,3,4,5,6,7,8)
Series= c(19.5,18.5,11,13,1,5,6,6)
df=c(Names,Series)

ggplot(df,aes(x= Names,y=Series))+geom_col(position="identity",fill="red")

but i have no idea how to make Names to be x-axis since it show weird graph with x axis 0,2.5,5,... 1,2,3,4,5, is not a continuous variable but an indicator I need x axis to be Names and y axis to be Series

Answer 1

What you should do:

ggplot(mapping = aes(x = factor(Names), y = Series)) + 
    geom_col(position="identity",fill="red")