Time Series Plots Using ggplot2
Of course, the ggplot2 can also visualize time series. This section introduces the relevant ggplot2 syntax.
Plot multiple time series data
Format date axis labels
Key function: scale_x_date().
To format date axis labels, you can use different combinations of days, weeks, months and years:
- Weekday name: use
%aand%Afor abbreviated and full weekday name, respectively - Month name: use
%band%Bfor 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")
