|
PureBytes Links
Trading Reference Links
|
Hi Fred,
after FileWriteNum(...) simply use FileWriteStr(",", fh) to append
a comma to the data. And yes, line end is done using "\n".
UM
----- Original Message -----
From: "Fred" <fctonetti@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 06, 2003 2:39 AM
Subject: [amibroker] Re: Additions to ABtool v0.0.5 beta
> Thanks for the confidence.
>
> For folks that have done C++ or similar programming, concepts
> like "\n" are probably cake as are the fact that "," can't be added
> behind numbers in FileWriteNum statements and I know this is beta,
> but even for those that have done their share of programming in
> unrelated languages in the past there isn't enough info to keep this
> from initially being a semi-painful experience.
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Chuck Rademacher"
> <chuck_rademacher@x> wrote:
> > Fred,
> >
> > I knew you were bright enough!
> > -----Original Message-----
> > From: Fred [mailto:fctonetti@x...]
> > Sent: Monday, May 05, 2003 8:20 PM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Re: Additions to ABtool v0.0.5 beta
> >
> >
> > Forget it ... I trial and errored it until I found what I needed.
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> > > Is this what you mean by "leap frogging" ?
> > >
> > > Since I apparently am not bright enough after several attempts
> to
> > > glean enough info out of the example in the zip to get it
> correct,
> > > can someone take the example in the zip and show how one would
> > create
> > > comma delimited records in the file that contain Symbol
> (ticker),
> > > Date, and closing price ?
> > >
> > > Thanks in advance
> > >
> > > --- In amibroker@xxxxxxxxxxxxxxx, "Chuck Rademacher"
> > > <chuck_rademacher@x> wrote:
> > > > UM...
> > > >
> > > > You are quite correct. You have provided the tool(s) to do
> the
> > > job. It is
> > > > up to the developer to take advantage of one or more of the
> tools
> > > to suit
> > > > his or her needs. A little bit of creativity is all that is
> > > required.
> > > >
> > > > All of these things were achievable before, but your DLL sure
> > makes
> > > it much
> > > > more manageable.
> > > > -----Original Message-----
> > > > From: uenal.mutlu@xxxx [mailto:uenal.mutlu@x...]
> > > > Sent: Monday, May 05, 2003 6:56 PM
> > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > Subject: Re: [amibroker] Re: Additions to ABtool v0.0.5 beta
> > > >
> > > >
> > > > Fred, you wrote
> > > >
> > > > > Will the addition of the TABLE related commands allow
> tables
> > to
> > > > > be built in memory with symbol or stocknum along one
> access
> > and
> > > > > datetime along the other and then filling the cells with
> > > scoring or
> > > > > ranking information for each member of the watchlist ?
> > > >
> > > > yes, of course, because now we have loops, browsing thru all
> > > > stocks, file I/O, and finally tables incl. exporting them to
> > CSV
> > > files.
> > > > So, I think all parts are already there; it's up to you what
> > > you're
> > > > going to do with these possibilities.
> > > >
> > > > In private email I had explained you how my "portfolio"
> > > > backtester works: via AFL I compute a score and add
> > > > this to the results table. That table is exported and the
> > > > content analyzed on a daily basis to determine the stocks
> > > > to choose for that day. This then is added to
> the "portfolio"
> > > > of the tester, and the tester keeps track on how good or
> > > > bad the results look like.
> > > >
> > > > I'll write a skelletton AFL code to demonstrate this (though
> > > > I'm afraid I'm not that knowledgeful (sp?) in this field
> than
> > > > you and others already are if one looks to the contributions
> > > > made in previous discussions).
> > > >
> > > > But IMHO it must be done in two phases: the (unfiltered)
> > > > output of AB must be sorted and filtered by either an
> > > > external program or a second AFL script. "Unfiltered"
> because
> > > > of the necessary sorting/ranking of the calculated scores
> for
> > > > each stock for each day. And: the results (profit, MaxDD
> etc.)
> > > > must be computed by your own code, becaue ABs BT IMHO
> > > > can't be used for this. The result will usually be an autom.
> > > > generated CSV file for visual inspection in Excel.
> > > > Just a tip: if you put all the fields necessary from the
> stocks
> > > > database (ie. quotes) to ABs result table (for export) and
> also
> > > > do let AB do most of the calculations (indicators, scores
> > etc.),
> > > then in
> > > > the
> > > > next phases you no more need access to ABs DB or (re)
> calculate
> > > them etc...
> > > > UM
> > > >
> > > > PS: I'm going to implement TableImport() to ABtool for
> > > > building such a table autom. from any external CSV file...
> > > > That way also the resulting table of Scan, Explore,
> Optimize,
> > > > and Backtest can be further analyzed programmatically in a
> > script.
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Fred" <fctonetti@xxxx>
> > > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > > Sent: Monday, May 05, 2003 10:30 PM
> > > > Subject: [amibroker] Re: Additions to ABtool v0.0.5 beta
> > > >
> > > >
> > > > > Uenal,
> > > > >
> > > > > Please reread my original email, you're answering
> questions
> > I'm
> > > not
> > > > > asking as opposed to the ones I did ask.
> > > > >
> > > > > Best regards
> > > > >
> > > > > --- In amibroker@xxxxxxxxxxxxxxx, uenal.mutlu@xxxx wrote:
> > > > > > Hi Fred,
> > > > > > these routines are written in C++ and therefore they
> can of
> > > course
> > > > > > also be used in C++ (ie. a compiler). An interpreter is
> by
> > > design
> > > > > > slower; but also the cleverness of the
> methods/algorithms
> > one
> > > > > > uses decides about the performance of an application.
> So if
> > > done
> > > > > > efficiently, then it will be fast. The alternative
> would be
> > > doing
> > > > > it in
> > > > > > a compiled language like C/C++ or Assembler :-) But
> that's
> > > much
> > > > > > harder than realizing it in an interpreter.
> > > > > > The faster your machine is the faster will be the code,
> so
> > > since
> > > > > > machines get much faster every quarter or so the
> performance
> > > > > > problem disappeares "naturally" if one can afford the
> > > > > > newest/fastest computing power.
> > > > > > BTW, I think it was Chuck who wrote that the ABtool had
> > saved
> > > > > > him about 12 hours processing time.
> > > > > > It is advisable that before starting a big project
> better
> > one
> > > > > should
> > > > > > do some speed benchmarks etc.
> > > > > > UM
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "Fred" <fctonetti@xxxx>
> > > > > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > > > > Sent: Monday, May 05, 2003 6:48 PM
> > > > > > Subject: [amibroker] Re: Additions to ABtool v0.0.5 beta
> > > > > >
> > > > > >
> > > > > > > Uenal,
> > > > > > >
> > > > > > > Will the addition of the TABLE related commands allow
> > > tables to
> > > > > be
> > > > > > > built in memory with symbol or stocknum along one
> access
> > and
> > > > > datetime
> > > > > > > along the other and then filling the cells with
> scoring or
> > > > > ranking
> > > > > > > information for each member of the watchlist ?
> > > > > > >
> > > > > > > If this were the case this would allow for in memory
> > > scoring and
> > > > > > > ranking bar by bar which one could then sort and use a
> > test
> > > for
> > > > > > > driving buy/sell signals.
> > > > > > >
> > > > > > > I assume this is not what can be done given how the
> AFL
> > > processor
> > > > > > > works and that in order to do what I am suggesting one
> > > would need
> > > > > to
> > > > > > > write the results out to a file in one pice of AFL and
> > then
> > > read
> > > > > it
> > > > > > > back in another.
> > > > > > >
> > > > > > > I Look forward to your comments ...
> > > > > > >
> > > > > > > Fred
------------------------ Yahoo! Groups Sponsor ---------------------~-->
Get A Free Psychic Reading! Your Online Answer To Life's Important Questions.
http://us.click.yahoo.com/O10svD/Me7FAA/uetFAA/GHeqlB/TM
---------------------------------------------------------------------~->
Send BUG REPORTS to bugs@xxxxxxxxxxxxx
Send SUGGESTIONS to suggest@xxxxxxxxxxxxx
-----------------------------------------
Post AmiQuote-related messages ONLY to: amiquote@xxxxxxxxxxxxxxx
(Web page: http://groups.yahoo.com/group/amiquote/messages/)
--------------------------------------------
Check group FAQ at: http://groups.yahoo.com/group/amibroker/files/groupfaq.html
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
|