Aggregation of fields vs field value line chart in R

Question

Hi, I have a doubt whether a chart can be plotted with aggregate field values for each x-value if provided?

Answer 1

Of course, it can be done. Let me show an example.

I want to show the average of displ for each value of cyl in mpg dataset.

Create new dataframe for easy implemnetation.

df_new = mpg %>% group_by(cyl) %>% summarise(avg_displ =median(displ))
ggplot(df_new,aes(cyl,avg_displ)) +geom_bar(stat = "identity")