removecats

Remove categories from a categorical array.

📝Syntax

B = removecats(A)
B = removecats(A, oldCategories)

📥Input Arguments

Parameter	Description
A	Input categorical array.
oldCategories	Categories to remove. If omitted, unused categories are removed.

📤Output Arguments

Parameter	Description
B	Categorical array with a reduced category list.

📄Description

removecats removes categories from the category list.

Elements that belonged to removed categories become undefined. When oldCategories is omitted, only unused categories are removed.

💡Examples

Remove an unused category.

A = categorical({'red','blue'}, {'red','blue','green'}); B = removecats(A, 'green'); categories(B)

Remove a used category and create undefined elements.

A = categorical({'red','blue','green'}); B = removecats(A, 'green'); isundefined(B)

🔗See Also

🕔Version History

Version	Description
2.0.0	initial version