tf = iscategory(A,catnames) returns
an array containing logical 1 (true)
where the data in catnames is a category of A.
Otherwise, iscategory returns logical 0 (false).
You can also select a web site from the following list:
How to Get Best Site Performance
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.