The prior Flourish object. No need to specify name if piping graph as the graph will take the first argument (i.e. the prior existing graph).
gantt_data
Gantt data.
start_date
Start date
end_date
End date. The end date or time of the event. If working with days, the end date should be the first day after the end date. So if your event stretches from 1/1. and ends on the 5/1. your end date should be 6/1. This will mean your Gantt bar will stretch across the last day of your project or task. Flourish type hint: column
task
Task
grouping
Group. Select a categorical column to combine bars into groups on the Y axis. Flourish type hint: column
color
Color category. Select a categorical column; each unique value in the column will become a color. Flourish type hint: column
progress
Progress. Requires a number column with values between 0 and 1, representing the progress from 0 to 100%. Flourish type hint: column
filter
Filter. If set, creates a filter menu or time slider. Flourish type hint: column
metadata
Info for popups. One or more columns of information (text, image URLs, embedded charts etc) to include in popups and panelsFlourish type hint: columns