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ISWHOLE

by Mukhtar Ullah

15 Nov 2004 (Updated 12 Mar 2007)

No BSD License

True for integers(whole numbers).

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Description

ISWHOLE True for integers(whole numbers).

ISWHOLE(X) is 1 for the elements of X that are integers, 0 otherwise. ISWHOLE(X1,X2,..,XN) returns a 1-by-N array with 1 for integers and 0 otherwise.

ISWHOLE does not check for integer data type as does ISINTEGER.

MATLAB release

MATLAB 7 (R14)

Tags for This File
Everyone's Tags	elements, integer, true, whole number
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Comments and Ratings (7)
11 Nov 2006	Carlos Adrián Vargas Aguilera	Good but, why not vectorized? And why not make it for any kind of arrays? There's not need for varargin. Check the inside of file Fibonacci.m by David Terr.
20 Nov 2006	Ullah Mukhtar	Carlos, If you only consider the first syntax I provide ,ISWHOLE(X), then you are right. I don't need varargin. The if part of the if-else structure is vectorized already. However, the non-vectorized else part, corresponds to the 2nd syntx, ISWHOLE(X1,X2,..,XN), which cannot be vectorized, at least with the current Matlab verions.
22 Nov 2006	Carlos Adrian Vargas Aguilera	What? Do you really think so, Ullah? It's Matlab! Check out like i said, Fibonacci.m or my roundd.m, is easy my friend... and then the input can be [X1,X2,..,XN] or a matrix...
02 Dec 2006	Mukhtar Ullah	Dear Carlos, You seem to have completely missed what I meant. My dear, in my first syntax ISWHOLE(X), X is an array, which means it can be a vector or matrix. My second syntax ISWHOLE(X1,X2,..,XN) is for the general case when X1, X2 ,.. XN are arrays (vectors or matices). Matlab is an array oriented language, so I don't have to write that explicitely. Matlab users get it usually.
03 Dec 2006	Mukhtar Ullah	In continuation to previous remark: in ISWHOLE(X1,X2,..,XN), the arrays X1, X2,... can have different dimenions. How on earth can you vectorize ISWHOLE in that case?
20 Apr 2009	Matt C
20 Apr 2009	Matt C	Needs some TLC and polish; though a good utility function.

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Updates
12 Mar 2007	Modified, as suggested by Josef Lotz, to provide indices of integer elements.

Tag Activity for this File
Tag	Applied By	Date/Time
integer	Mukhtar Ullah	22 Oct 2008 07:35:48
whole number	Mukhtar Ullah	22 Oct 2008 07:35:48
true	Mukhtar Ullah	22 Oct 2008 07:35:48
elements	Mukhtar Ullah	22 Oct 2008 07:35:48

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