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Re: fsolve test failure
From: |
John W. Eaton |
Subject: |
Re: fsolve test failure |
Date: |
Thu, 29 Jan 2009 16:38:28 -0500 |
On 29-Jan-2009, John W. Eaton wrote:
| On 29-Jan-2009, Jaroslav Hajek wrote:
|
| | > x = optimset ();
| | >
| |
| | This call returns an empty structure. What do you mean?
OK, this may be part of the confusion. In Matlab, I think this
returns a structure with all the known options as fields, but each has
the value of an empty matrix. But in Octave, we are returning a
structure with no fields. Should we be compatible here? How would
optimset know about all options used by all optimization functions
that can accept options structures as arguments? I would prefer to
avoid embedding that knowlege directly in optimset if possible.
| I don't understand what you mean by "it is irrelevant what case ...".
| Doesn't optimset also have to work in a case insensitive way? But
| when it returns the struct containing the optoins, the fields must
| have the TolX style names, right? They can't be spelled any other
| way, or code like I posted will fail.
OK, it occurred to me that even if the structure is returned with the
TolX style names, doing something like
x.tolx = foobar;
will not actually fail. But this could cause some confusion. What
would a case-insensitive optimget do if there are two field names that
differ only by case?
jwe
- Re: fsolve test failure, (continued)
- Re: fsolve test failure, John W. Eaton, 2009/01/27
- Message not available
- Re: fsolve test failure, John W. Eaton, 2009/01/29
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/29
- Re: fsolve test failure, John W. Eaton, 2009/01/29
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/29
- Re: fsolve test failure, John W. Eaton, 2009/01/29
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/29
- Re: fsolve test failure, John W. Eaton, 2009/01/29
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/29
- Re: fsolve test failure, John W. Eaton, 2009/01/29
- Re: fsolve test failure,
John W. Eaton <=
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/30
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/30
- Re: fsolve test failure, John W. Eaton, 2009/01/30
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/30
- Re: fsolve test failure, John W. Eaton, 2009/01/30
- Re: fsolve test failure, Ben Abbott, 2009/01/30
- Re: fsolve test failure, John W. Eaton, 2009/01/30
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/31
- Re: fsolve test failure, Jaroslav Hajek, 2009/01/31
Re: fsolve test failure, Ben Abbott, 2009/01/27