Plot time serie over the years and add quarters as vertical lines in the plot

[rutger]

0

I am plotting sales over years of variable x over the years. I already have a variable "quarters" indicating quarter 1,2,3 or 4.

With the following code i plotted unit sales over the years:

ggplot(data = hoogvliet_tess ,aes(x=date, y=UnitSales)) +
  geom_line() + ggtitle("UnitSales x over the years")

Is there a possibility to extent the plot with for example vertical lines indicating the quarters of every year?

With kind regard,

[FJCC]

Can you post some of your data so others can use your ggplot code? The output of the dput() function is a good way to share data. To provide the first 20 rows of data, run

dput(head(hoogvliet_tess, 20))

and post the output here. You can adjust the 20 value to whatever makes sense with your data.