View Categories
There a 2 ways to define categories. You can use neither, one, both of them.
Method 1
The first option is to set a default category for all entries in this feed:
category=
category=“2”
or
category=“flickr”
You can use either the id or name of the category to put entries in by default, but id is recommended as the same name could appear in different category groups in larger setups.
Method 2
The second option allows you to select categories from an element of the feed:
category_field=
category_field=“categories”
The element in the feed that contains the category (or list of categories)
category_delimiter=
category_delimiter=“SPACE”
The delimiter between categories in the category_field element. Use the value “SPACE” for a space delimiter.
category_group=
category_group=“2”
This parameter sets the id of the category group to create new categories in.
Categories that do not exist are created automatically.