Code covered by the BSD License  

Highlights from
samesize

5.0

5.0 | 1 rating Rate this file 17 Downloads (last 30 days) File Size: 1.55 KB File ID: #36636

samesize

by

 

10 May 2012 (Updated )

Determine if all inputs are the same size in all dimensions.

| Watch this File

File Information
Description

samesize: takes any number of arrays of any type and returns true if
the dimensions of all the objects are the same

Syntax

result = samesize(A, B, ...)

Description

A, B etc are arrays or matrices of any type. samesize returns true if
they are all the same size in every dimension, and have the same number
of dimensions, or false otherwise

samesize returns true for zero arguments, or a single argument on the
basis that the input will definately be the same size as itself in these
cases.

Example

astruct = struct('a',{1,2,3}); % creates a (1 x 3) struct array
anarray = [1,2,3];
acellarray = {2+6j, [1,2,3,4,5,6,7,8], 'a string'};
samesize(astruct, anarray, acellarray)

>>
 ans =
      1

samesize(astruct, anarray', acellarray)

>>
 ans =
      0

See also: size, ndims

Tested in R2008a and R2011a

Acknowledgements

This file inspired Regexprepfile, Strrepfile, and Refactor Fcn Name.

MATLAB release MATLAB 7.6 (R2008a)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (4)
25 Aug 2013 Jan Simon

Another hint: ISEQUAL replies a scalar TRUE or FALSE, so there is no need for ALL().

14 May 2012 Richard Crozier

@Jan, oh, and thanks for the useful review.

14 May 2012 Richard Crozier

@Jan,

Actually, I see now that isequal will return false in this case, so maybe I will just get rid of the first test!

12 May 2012 Jan Simon

"any(diff(numdims))" is faster than "numel(unique(numdims)) > 1", but I'd omit the test for equal number of dimensions completely.

The function works as expected, the task is useful, it has a H1-line and a help text with an example and a "See also" line.

Updates
14 May 2012

used any(diff(numdims)) suggestion from commenter

14 May 2012

removed first test for number of dimensions.

Contact us