Hello, David,
Thank you very much for the answer. I understand and agree with your
reasons. And I understand that you purposely program like this. I just
always confuse when I use 3 independent variables, especially when
setting the input for type42a.
What do you think, if you could add a blanket behind the questions for
the parameter No. 4,5 and 6 of type 42a, as
’Number of value of 1^st ind. Var (3^rd line)
’Number of value of 2^nd ind. Var (2^nd line)
’Number of value of 3^rd ind. Var (1^st line)
It would probably be the same for you and everybody, but I feel that
it reminds me to think again before entering the data.
Kind regards,
Wimolsiri
------------------------------------------------------------------------
*From:* trnsys-users-bounces@engr.wisc.edu
[mailto:trnsys-users-bounces@engr.wisc.edu] *On Behalf Of *David Bradley
*Sent:* Tuesday, March 28, 2006 4:19 PM
*To:* Wimolsiri Pridasawas; trnsys-users@engr.wisc.edu
*Subject:* Re: [TRNSYS-users] Confusion in Type42
Wimolsiri,
The structure of external data files read by the DATA, DYNDATA, or
DynamicData subroutines is that the first line in the file contains
the value of the highest order independent variable. Thus if you have
three independent variables, line 1 in the data file should contain
the values of the "third" independent variable. Line 2 should contain
the values of the "second" independent variable and line 3 should
contain the values of the "first" independent variable. This structure
makes it easier to add new independent variables (and the dependent
variables that go along with them) to data files; the new independent
variables go at the top of the file and the new corresponding
dependent variables go in a block at the beginning of the data section
instead of scattered throughout the data section.
Kind regards,
David
At 05:15 3/28/2006, Wimolsiri Pridasawas wrote:
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Content-Type: multipart/related; type="multipart/alternative";
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Hello!
There is a confusion in the code of function subroutine DATA, type 42a
and 42b (conditioning equipments for 3 and 2 variables). According to
the manual for subroutine ‘DATA’ (page 62, programmerguide), which is
used for interpolate the data sets, in the external data access file
(*.dat file),
The first row is the value of the independent variable 2
The second row is the value of the independent variable 1
To avoid the mistake and confusion, could you please consider changing
or renaming the independent variable of type 42a and 42b as,
The first row is the value of the independent variable 1
The second row is the value of the independent variable 2
and
The second row is the value of the independent variable 3
The model has probably been changed, but the current version
(16.00.0037) that I am using now make me confuse quite a lot.
Best regards,
Wimolsiri
/________________________________
/
/Wimolsiri Pridasawas/
Kungl. Tekniska Högskolan
Inst. för Energiteknik
Tillämpad Termodynamik och Kylteknik
SE-100 44 Stockholm
Tel. +46(0)8 790 7889
Fax. +46(0)8 20 30 07
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