out =
removecats (obj)
¶Removes all unused categories from obj. This is equivalent to
out = squeezecats (obj)
.
out =
removecats (obj, oldcats)
¶Remove categories from categorical array.
Removes the specified categories from obj. Elements of obj whose values belonged to those categories are replaced with undefined.
newcats is a cellstr listing the category names to add to obj.