R: visualising calendar predictions with ggplot2?

Question

You have numeric predictions that you want to show on a calendar.

How can you visualise predictions about calendar data in R with ggplot2?

Answer 1

I gather below some ideas, I haven't found any single general-purpose package for this yet.

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General ideas to visualise calendar data in R

1. Heatmap like green-red to illustrate large-small predictions
2. Star symbol on dates to show special days
3. Lines over days to show special long-term events
4. Chart fusion ideas here

ggplot2 solutions to visualise calendar data in R

3. Creating a monthly/yearly calendar image with ggplot2

4. Openair package here, article here and referenced article here (used originally for air pollutation visualisation but works for calendar week visualisation)

5. Some heatmap showing the weekday status here

Other questions on calendar data

1. Calendar Time Series with R