Hello,
I am stuck on the second extra challenge in the project https://www.codecademy.com/paths/analyze-data-with-r/tracks/working-with-data-in-r-skill-path/modules/working-with-data-off-platform-project/informationals/working-with-data-in-r-cumulative-project.
I am not being able to plot the rate of change of all the different countries in one graph. I feel like I need to group by country but I am not being able to do that. Here is my code:
df_reshaped %>% ggplot(aes(x = date, y = Cases, group = Country)) +
geom_line()
I would really appreciate some help!