Conventions¶
All functions that end with an underscore return an object. You can often see the same functions with and without underscore: ex:
This sets a datetime index from a column in the main dataframe:
ds.dateindex("date")
This returns a new instance with a dataframe set with a datetime index:
ds2 = ds.dateindex_("date")
Note: some functions without underscore can still return something: ex: ds.show()
returns a dataframe’s head