I have a dataset of datetimes and I wanted to see them as a timeseries, counting up how many rows occur in different months/years, etc. When I try this using the rect mark, I end up with many individual marks rather than one big bar for each month. Is this because I have times as well? Do I have to define the year/month in order to aggregate by it?
- If I have datetimes, how can I aggregate them to show arbitrary frequencies in Plot (like number in each month, for example)?