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getstruct, setstruct, etc.
From: |
Andy Adler |
Subject: |
getstruct, setstruct, etc. |
Date: |
Wed, 21 Jul 2004 16:21:37 -0400 (EDT) |
I'm in the process of getting a project to work on both Matlab and
Octave (a medical imaging toolkit: eidors3d.sf.net)
I've noticed that Matlab's structure functions work quite differently
than those of octave. The problem is that the octave-forge function does
not allow one to access deeply nested subfields easily.
QUESTION:
Is anyone feel strongly about changing the octave-forge functions
to be closer to Matlab?
QUESTION#2:
Matlab claims that GETFIELD is deprecated in favour of "dynamic
field names". Does anyone know what the *$#@ that is?
Andy
e.g.
OCTAVE:
help getfield
- Built-in Function: [V1,...] = getfield (S, 'k1',...) = [S.k1,...]
Return selected values from a struct. Provides some compatibility
and some flexibility.
MATLAB:
>> help getfield
GETFIELD Get structure field contents.
F = GETFIELD(S,'field') returns the contents of the specified
field. This is equivalent to the syntax F = S.field.
S must be a 1-by-1 structure.
F = GETFIELD(S,{i,j},'field',{k}) is equivalent to the syntax
F = S(i,j).field(k).
In other words, F = GETFIELD(S,sub1,sub2,...) returns the
contents of the structure S using the subscripts or field
references specified in sub1,sub2,etc. Each set of subscripts in
parentheses must be enclosed in a cell array and passed to
GETFIELD as a separate input. Field references are passed as
strings.
Note that if the evaluation of the specified subscripts results
in a comma separated list, then GETFIELD will return the value
corresponding to the first element in the comma separated list.
NOTE: GETFIELD is deprecated. Please see the documentation for
dynamic field names for accessing structure fields.
- getstruct, setstruct, etc.,
Andy Adler <=
- getstruct, setstruct, etc., John W. Eaton, 2004/07/21
- Re: getstruct, setstruct, etc., Paul Kienzle, 2004/07/21
- Re: getstruct, setstruct, etc., Andy Adler, 2004/07/22
- Re: getstruct, setstruct, etc., Paul Kienzle, 2004/07/22
- Re: getstruct, setstruct, etc., Andy Adler, 2004/07/22
- Re: getstruct, setstruct, etc., Paul Kienzle, 2004/07/22
- Re: getstruct, setstruct, etc., Etienne Grossmann, 2004/07/22
- Re: getstruct, setstruct, etc., Paul Kienzle, 2004/07/22
- Re: getstruct, setstruct, etc., Etienne Grossmann, 2004/07/23