essage (don't include the quotation
marks, either).
For more information about this list, as well as a way to retrieve
your password to make personal account changes, visit the information
page:
https://lists.nasa.gov/mailman/listinfo/sim-stds
Sorry for the inconvenience.
-- Bru
On Mar 17, 2008, at 9:34 PM, Dan Newman wrote:
I've been looking over the DTD version 2.0 Release Candidate 1,
applying it to validation of a dataset.
To do this I've been using emacs nxml-mode, which requires pre-
translation of the DTD to a RELAX-NG schema format. The translation
is pe
, we do convert to and from computational units when
interacting with DaveML files. One minor error I spotted in the draft
Std is that "ms_1" has two interpretations: "meters per second" or
"per
millisecond". Trivial, but enough to miss Mars.
Cheers, Rob
Rob Curti
Geoff,
This is a needed improvement to DAVE-ML.
My first thought is the arrayDef attribute should be something like
'dimensions="3"' and then a (set) of subelements that define the
actual dimensions:
dimensions="3">
2
6
3
My Data Matrix is a 2x6x3 matrix; the last
dime
Thanks, Dennis,
It's great to have a fresh pair of eyes look at something like this;
I appreciate the comments.
Look for these fixes in RC2.
-- Bruce
On Oct 31, 2007, at 11:22 AM, Linse, Dennis J. wrote:
Bruce,
I was just reading through the latest DAVE-ML manual (Dynamic
Aerospace
V
uncertainty examples.
<http://daveml.larc.nasa.gov/DTDs.html>
Comments welcomed, but at this point the changes probably will go
through a committee instead of just me.
-- Bruce
Bruce Jackson <[EMAIL PROTECTED]> Dynamic Systems & Control Branch
8 Langley Boulevard, MS
On Jun 19, 2007, at 5:33 PM, Brian, Geoff wrote:
From: Bruce Jackson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 19 June 2007 3:40 AM
To: Giovanni A. Cignoni
Cc: simstds@larc.nasa.gov
Subject: Re: Discrete interpolation attribute (was New version of
DAVEfunc DTD 1.9b3)
On Jun 18, 2007, at 1:28
On Jun 18, 2007, at 1:28 PM, Giovanni A. Cignoni wrote:
The main change to the DTD is addition of 'discrete' as a
supported interpolation method for tabular data, yielding a stair-
step response from such a function. This came from a suggestion
from Geoff Brian of Australia's DSTO.
"Di
o contains an example of how to encode the 'atan2' four-
quadrant arctangent function, which is not directly supported in
MathML2 grammar.
-- Bruce
Bruce Jackson <[EMAIL PROTECTED]> Dynamic Systems & Control Branch
8 Langley Boulevard, MS 308 Research &a
general is available at
http://daveml.nasa.gov
-- Bruce
--
Bruce Jackson <[EMAIL PROTECTED]> Dynamic Systems & Control Branch
8 Langley Boulevard, MS 308 Research & Technology Directorate
NASA Langley Research Center Hampton, Virginia 23681
"Have
(staticshot) blocks.
Are you looking at an earlier version?
-- Bruce Jackson
. If a variable depends upon the output
(dependentVar) of a function it can be assumed that dependence has
been met, since functions are defined later in the DAVEfunc element.
Thanks for the excellent feedback, and I'm sorry to not have caught
this obvious poor example.
-- Bruce Jacks
exactly right. It IS good practice
(IMHO) to define the variables in the order they will be used; if
this is not possible, we could end up with a circular reference which
would (for a static model) indicate a problem.
I will fix the F16 model and reword the reference guide.
Thanks again for find
DTD when the
message from Dr. Cignoni was posted; that was a pleasing serendipity
because this revised DTD will address most if not all of the bugs he
and his GeneSim project team found.
<http://genesim.sourceforge.net>
Thanks for the helpful suggestions!
-- Bruce Jackson
--
Bruce Jackson
At 3:57 PM +1000 9/26/06, Brian, Geoff wrote:
Hi all,
I have struggled with the recommended variable naming standard for a
while due to its implications on writing clean code.
My conclusion was that when writing code I would probably not use the
name as recommended. I would include a reference
At 9:29 PM -0500 9/22/06, Jon S. Berndt wrote:
I believe it would be desirable to have a text field in AERO-ML to specify a
license for the file, and also to have a field for specifying the
sensitivity (secret, classified, proprietary, etc.).
I suppose that the license field could look like this
At 10:13 AM +1000 9/22/06, Brian, Geoff wrote:
Hi all,
We have been having some discussion here about the use of the
Provenance definition for detailing the source of data used to build
data sets.
Currently Provenance provides information on the author, function
creation data, and links to r
these are
usually axi-symmetric and thus have lower degrees of freedom. Unfortunately,
they're regarded as 'munitions' and I can't share them.
Sorry to not be of much help, but I'm delighted to hear of your efforts. I'll
visit the genesim website for more infor
At 7:04 AM -0600 11/30/05, Jon Berndt wrote:
>I was noticing a gridded table definition (from the example on the DAVEML web
>site):
>
>
>
>
>
>
>
>
>
> 9.5013e-01 6.1543e-01 5.7891e-02 1.5274e-02 8.3812e-01 1.9343e-01
> 2.3114e-01
Title: Re: DAVEML XML Schema
available?
At 8:49 PM -0600 11/24/05, Jon Berndt wrote:
I visited the DAVEML web page, but did
not seem mention of an XML Schema for DAVEML. I seem to recall some
mention of the existence of a schema. Is there a Schema for DAVEML? I
suspect that there is a way to conv
u have questions regarding the simstds@larc.nasa.gov mailing
list, please contact Bruce Jackson, [EMAIL PROTECTED]
--
Bruce Jackson <[EMAIL PROTECTED]> Dynamic Systems &
Control Branch
8 Langley Boulevard, MS 308
Research & Technology Directorate
NASA Langley Research
Center
g
"Sleigh Ride" or "Dreaming of a White Christmas"?
-- bjax
--
Bruce Jackson <[EMAIL PROTECTED]>
Guidance and Controls Branch
18C West Taylor Street MS 132
Research & Technology Directorate
NASA Langley Research
Center Hampton, Virginia
2368
adding what I thought was the appropriate
default attribute to the element.
I'm sending you separately a test DTD to see if that fixes
things.
What editor or tool are you using to validate?
Thanks,
-- Bruce Jackson
--
Bruce Jackson <[EMAIL PROTECTED]>
Guidance and Controls Bran
Title: Re: Data tables
At 5:50 PM -0500 9/29/04, Jon S Berndt wrote:
I've been looking at the data table
format for DAVE-ML, for example:
9.5013e-01 6.1543e-01
5.7891e-02 1.5274e-02 8.3812e-01 1.9343e-01
2.3114e-01 7.9194e-01
3.5287e-01 7.4679e-01 1.9640e-02 6.8222e-01
8.2141e-01 4
, we'll need to come up with a short list (perhaps you've done this above).
An interesting question would be, do we define the precision (for example, does double
mean 32-bit or 62-bits?) or is this necessary.
Thanks for the suggestion. Version 1.8b1 will be out soon and probably will
developed by members of the American Institute of Aeronautics
and Astronautics (AIAA) Modeling and Simulation Technical Committee.
-- Bruce Jackson
--
Bruce Jackson mailto:[EMAIL PROTECTED] Dynamics and Control Branch
18C West Taylor Street MS 132 Airborne Systems Competency
NASA Langley
September 2004 Dr. Dobb's Journal hints that we might be able to
adapt Eclipse to serve as a DAVE-ML editor.
-- Bruce Jackson
--
Bruce Jackson mailto:[EMAIL PROTECTED] Dynamics and Control Branch
18C West Taylor Street MS 132 Airborne Systems Competency
NASA Langley Research C
AVE-ML is to specify some baseline flight dynamics model of a vehicle,
so variations on that theme would have to be handled with either a modified DAVE-ML
document or some external means.
Not an entirely satisfactory answer, I'm sure; I'll be glad to hear other comments.
-- Bruce Ja
We are aware of some efforts to encode an entire non-linear function using a single
multi-order polynomial, but that's not what you're suggesting, are you?
Let's discuss this further. I think text-based information exchange may rapidly become
somewhat limiting :)
-- B
e correct acronym definition.
At NASA we spend a lot of effort developing TLA's, but since this is a FLA, I was
unable to process it using standard TLA tools and processes. That is why the
definition escaped me when writing.
Thanks again for your post!
-- Bruce Jackson
P.S. TLA -> Thre
edback welcomed.
Shameless AIAA plug: DAVE is being developed in cooperation with the AIAA Modeling and
Simulation Technical Committee. Support your technical organization's standards
efforts!
-- Bruce Jackson, NASA Langley Research Center
--
Bruce Jackson mailto:[EMAIL PROTECTED] Dynamics an
al Committee. Support your technical organization's standards
efforts!
-- Bruce Jackson, NASA Langley Research Center
--
Bruce Jackson mailto:[EMAIL PROTECTED] Dynamics and Control Branch
18C West Taylor Street MS 132 Airborne Systems Competency
NASA Langley Research Cente
-ML models be updated to simply change all such
elements to [un]griddedTableDef elements by simple rename.
I'm still receptive to ideas concerning my earlier e-mail on statistical properties of
functions... I'll be tackling that next.
--Bruce Jackson
--
Bruce Jackson mailto:[EMAIL
At 1:43 PM -0700 10/16/03, Jeremy Furtek wrote:
> > Does anyone on the list have experience using an XML parser
>> with C++? If so, can you recommend a decent set of parser tools?
>
>I have been using the Xerces-C++ parser for an application, and it has been
>more than adequate.
>
>http://xml.apach
could represent 1-, 2-, or 3-sigma confidence levels
for a Gaussian/normally distributed parameter, or the values could be
absolute limits for a uniform distribution.
Any comments to the list, please ->
[EMAIL PROTECTED]
Thanks for your interest.
--Bruce Jackson
--
Bruce Jackson mai
Does anyone on the list have experience using an XML parser with C++? If so, can you
recommend a decent set of parser tools?
--Bruce
--
Bruce Jackson mailto:[EMAIL PROTECTED] Dynamics and Control Branch
18C West Taylor Street MS 132Airborne Systems Competency
NASA Langley Research
Title: RE: Confidence interval
At 4:58 PM -0400 9/2/03, Hildreth, Bruce wrote:
Hi Bruce,
see embedded comments
-Original Message-
From: Bruce Jackson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, September 02, 2003 3:37 PM
To: [EMAIL PROTECTED]
Cc: Bruce Hildreth
Subject: Confidence interval
wo boundary values.
These two changes to the draft simulation exchange standard
would, I think, move us closer to industry practice for Monte Carlo
simulation results, in my limited experience.
Any opinions welcomed.
--Bruce Jackson
--
Bruce Jackson mailto:[EMAIL PROTECTED] Dynamics and Contr
I'm attempting to hook up this mailing list <[EMAIL PROTECTED]> to the Mail Archive
<http://www.mail-archive.com> web site, so future messages will be accessible via the
web...
This is a test message - feel free to delete.
--Bruce Jackson
--
Bruce Jackson mailto:[EMAIL PROTEC
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