ordinal class - Superclasses: categorical

Arrays for ordinal categorical data

Description

An ordinal array is a kind of categorical array in which an ordering is encoded in the categories. More generally, categorical arrays are designed to store, manipulate, and process sets of data that assume values only in a finite, discrete set of categories or levels. Each ordinal array has its own set of levels and optional labels. Like a numerical array, an ordinal array can have any size or dimension.

Construction

ordinal

Construct ordinal categorical array

Methods

ismember	Test for membership
mergelevels	Merge levels
sort	Sort elements of ordinal array
sortrows	Sort rows

Inherited Methods

Methods in the following table are inherited from categorical.

addlevels	Add levels to categorical array
cat	Concatenate categorical arrays
cellstr	Convert categorical array to cell array of strings
char	Convert categorical array to character array
circshift	Shift categorical array circularly
ctranspose	Transpose categorical matrix
disp	Display categorical array
display	Display categorical array
double	Convert categorical array to double array
droplevels	Drop levels
end	Last index in indexing expression for categorical array
flipdim	Flip categorical array along specified dimension
fliplr	Flip categorical matrix in left/right direction
flipud	Flip categorical matrix in up/down direction
getlabels	Access categorical array labels
getlevels	Get categorical array levels
horzcat	Horizontal concatenation for categorical arrays
int16	Convert categorical array to signed 16-bit integer array
int32	Convert categorical array to signed 32-bit integer array
int64	Convert categorical array to signed 64-bit integer array
int8	Convert categorical array to signed 8-bit integer array
intersect	Set intersection for categorical arrays
ipermute	Inverse permute dimensions of categorical array
isempty	True for empty categorical array
isequal	True if categorical arrays are equal
islevel	Test for levels
ismember	True for elements of categorical array in set
isscalar	True if categorical array is scalar
isundefined	Test for undefined elements
isvector	True if categorical array is vector
length	Length of categorical array
levelcounts	Element counts by level
ndims	Number of dimensions of categorical array
numel	Number of elements in categorical array
permute	Permute dimensions of categorical array
reorderlevels	Reorder levels
repmat	Replicate and tile categorical array
reshape	Resize categorical array
rot90	Rotate categorical matrix 90 degrees
setdiff	Set difference for categorical arrays
setlabels	Label levels
setxor	Set exclusive-or for categorical arrays
shiftdim	Shift dimensions of categorical array
single	Convert categorical array to single array
size	Size of categorical array
squeeze	Squeeze singleton dimensions from categorical array
subsasgn	Subscripted assignment for categorical array
subsindex	Subscript index for categorical array
subsref	Subscripted reference for categorical array
summary	Summary statistics for categorical array
times	Product of categorical arrays
transpose	Transpose categorical matrix
uint16	Convert categorical array to unsigned 16-bit integers
uint32	Convert categorical array to unsigned 32-bit integers
uint64	Convert categorical array to unsigned 64-bit integers
uint8	Convert categorical array to unsigned 8-bit integers
union	Set union for categorical arrays
unique	Unique values in categorical array
vertcat	Vertical concatenation for categorical arrays

Properties

Inherited Properties

Properties in the following table are inherited from categorical.

labels	Text labels for levels
undeflabel	Text label for undefined levels

Copy Semantics

Value. To learn how this affects your use of the class, see Comparing Handle and Value Classes in the MATLAB Object-Oriented Programming documentation.

References

[1] Johnson, N. L., S. Kotz, and A. W. Kemp, Univariate Discrete Distributions, 2nd edition, Wiley, 1992, pp. 124-130.