

## Exploring bar graphs
Let's start off with creating a simple bar chart of the confirmed COVID-19 cases
ggtitle("Confirmed COVID-19 cases from Jan 2020 to Nov 2021") +
scale_y_continuous(labels=comma) +
scale_fill_gradient(low = "green", high = "red",labels = comma)
```

Similarly, we can also make the bar charts for the recovered and the deceased cases in different colours.

