Time Series Plots Using ggplot2

Key function: scale_x_date().

To format date axis labels, you can use different combinations of days, weeks, months and years:

• Weekday name: use %a and %A for abbreviated and full weekday name, respectively
• Month name: use %b and %B for abbreviated and full month name, respectively
• %d: day of the month as decimal number
• %Y: Year with century.
• See more options in the documentation of the function ?strptime

# Format : month/year
p + scale_x_date(date_labels = "%b/%Y")