@nominal :: Class Reference (Statistics Toolbox™)

Statistics Toolbox™

@nominal

Arrays for nominal categorical data

On this page…
Hierarchy Constructor Properties Methods

On this page…

Hierarchy

Superclasses: @categorical

Subclasses: None

Constructor

nominal

Properties

Inherited Properties

Properties in the following table are inherited from @categorical.

Name	Description
`labels`	Text labels for levels. Access labels with `getlabels`.
`undefLabel`	Text label for undefined levels. Constant property with value `'<undefined>'`.

Methods

The following table contains links to methods with supporting reference pages, including examples. For help on methods without links, type:

help nominal/methodname

Method	Description
`cat`	Concatenate arrays. The `horzcat` and `vertcat` methods implement special cases.
`eq`	Equality for arrays. To invoke this method, use the `==` operator.
`horzcat`	Horizontal concatenation. To invoke this method, use square brackets, as described in Combining Categorical Arrays.
`intersect`	Set intersection.
`ismember`	True for set member.
`mergelevels`	Merge levels.
`ne`	Not equal. To invoke this method, use the `~=` operator.
`nominal`	Construct nominal categorical array.
`setdiff`	Set differences.
`setxor`	Set exclusive or.
`union`	Set union.
`vertcat`	Vertical concatenation. To invoke this method, use square brackets, as described in Combining Categorical Arrays.

Inherited Methods

Methods in the following table are inherited from @categorical.

Method	Description
`addlevels`	Add levels.
`cellstr`	Convert to cell array of strings.
`char`	Convert to character array.
`circshift`	Shift circularly.
`ctranspose`	Transpose. To invoke this method, use the `'` operator.
`disp`	Display, without printing array name.
`display`	Display, printing array name. To invoke this method, enter the name of a categorical array at the command prompt.
`double`	Convert to `double` array.
`droplevels`	Remove levels.
`end`	Last index in indexing expression.
`flipdim`	Flip along specified dimension.
`fliplr`	Flip in left/right direction.
`flipud`	Flip in up/down direction.
`getlabels`	Get level labels.
`int8`	Convert to `int8` array.
`int16`	Convert to `int16` array.
`int32`	Convert to `int32` array.
`int64`	Convert to `int64` array.
`ipermute`	Inverse permute dimensions.
`isempty`	True for empty array.
`isequal`	True if arrays are equal.
`isscalar`	True if array is scalar.
`islevel`	Test for array levels.
`isundefined`	True for elements of array that are undefined.
`isvector`	True if array is vector.
`length`	Length of array.
`levelcounts`	Element counts by level.
`ndims`	Number of dimensions.
`numel`	Number of elements.
`permute`	Permute dimensions.
`reorderlevels`	Reorder levels.
`repmat`	Replicate and tile array.
`reshape`	Change size of array.
`rot90`	Rotate 90 degrees.
`setlabels`	Relabel levels.
`shiftdim`	Shift dimensions.
`single`	Convert to `single` array.
`size`	Size of array.
`squeeze`	Squeeze singleton dimensions from array.
`subsasgn`	Subscripted assignment. To invoke this method, use parenthesis indexing, as described in Accessing Categorical Arrays.
`subsref`	Subscripted reference. To invoke this method, use parenthesis indexing, as described in Accessing Categorical Arrays.
`summary`	Summary of array.
`times`	Product of arrays. To invoke this method, use the `.*` operator.
`transpose`	Transpose. To invoke this method, use the `.'` operator.
`uint8`	Convert to `uint8` array.
`uint16`	Convert to `uint16` array.
`uint32`	Convert to `uint32` array.
`uint64`	Convert to `uint64` array.
`unique`	Unique values in array.

@haltonset

@ordinal