subsref

Extract a subset of a collection given an indexing method and range. sub on the value val.

Syntax

subsref(val, sub)

val: Any valid number.; Type: double | integer | char | string | logical | struct | cell; Dimension: scalar | string | vector | matrix
sub: Type: struct; Dimension: scalar; A struct containing the fields type and subs. The value of type must be '()' or '{}'. The value of subs is a cell array indicating the corresponding ranges to be extracted. The cell contents can either be a scalar, matrix, or the string ':'.

Simple subsref example.

val = [1 2 3; 4 5 6]
idx.type = '()';
idx.subs = {':', 1:2};
subsref (val, idx)

val = [Matrix] 2 x 3
1 2 3 
4 5 6 
ans = [Matrix] 2 x 2
1 2 
4 5