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Oh, and at the bottom of one of those AFL Library examples someone
posted
STOCKSSTAR
STOCKSSTAR [at] GMAIL.COM
2008-06-15 15:22:42 I AM NEW TO AMIBROKER STUFF AND NOT SW GUY
CAN U TELL ME HOW TO ADD THIS IN AMI?TECHNICAL ASPECTS
--- In amibroker@xxxxxxxxxxxxxxx, "brian_z111" <brian_z111@xxx> wrote:
>
> I am posting comments under the sub-topic started by Herman i.e.
>
> "The best way to help newbies, oldies.... and AmiBroker.
>
> Specifically where Herman said that:
>
> "I always figured that sticking with AFL would have provided a more
> continuous path for users to develop their programming expertise".
>
> and then went on to make some suggestions about AB training related
> issues (books, UKB etc).....the later I consider to be old topics,
> well discussed..... worth discussing if there is anything new.
>
> > ......what direction do you want to go in ?
>
> It is not a question of the direction but whether I have been
> provided with the tools to get there.
>
> IMO the AB manual should provide me with the basics ... if anymore
is
> required that is the place to do it.
>
> For example:
>
> 18 months ago I was stuck with some code and then hazarded a guess
> that I could use log/antilog. The only thing I could remember about
> log was that adding logs is a surrogate for multiplication.
>
> Looking at the maths functions I found that there is nothing to
> connect exp to log.
>
> To get the job done I had to go to Wiki.
>
> If you go to Wiki you will find it quite challenging for a non-
> mathematician... it includes statements like:
>
> "When log is written without a base (b missing from logb), the
intent
> can usually be determined from context.
>
> If phssst wants to say that I should have the skills or set my
sites
> lower or that it is not AB's job to teach me maths then that is a
> fair comment to make.
>
> The AB manual didn't offer me a lot of help in that area.
>
> I had to guess that exp was the inverse of log and I had to prove
it
> to myself by running an example, exporting to Excel etc.
>
> Once again it would be a fair comment if people said that is high
> school maths, if you don't know pay Graham.
>
> I did try to get some guidance from the AFL Library examples linked
> to under the Log function (per the AFL manual).
>
> The first two examples:
>
> Andrews Pitchfork
> AR Prediction
>
> - written a couple of years ago
> - not maintained since?
> - not officially supported/approved by AB
> - I don't know the authors
> - the comments include statements about errors,syntax errors
> - they don't have any explanation as to what each line of code is
> doing
> - they have wrap around
> - the uses for code itself isn't well expalined
> - there is no explanation of log at all
> - AR Prediction uses both log and log10
>
> if you scroll down you get something like
>
> // Calculate the Pitchfork itself
>
> // Handle first
>
> for ( j=zagx3[sbi],n=0 ; j < Min(sbi+xtsn,BarCount) ; j++,n++ ) {
> Handle[j]=exp(log(zagy3[sbi]) + n*echng) + shift;
>
> That is the most help you get with AB log.
>
> Compare that to say, 1 or more very small examples that show the
> basic uses e.g. it can be used to multiply, here is the code (a
line
> or two) and this is what it does (4-5 lines of short arrays showing
> the math transformation from log, add, antilog (exp).
>
> Any other similar common uses could be treated in the same way.
>
>
> brian_z
>
>
>
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, Fred Tonetti <ftonetti@> wrote:
> >
> > Brian / Allan,
> >
> >
> >
> > While I'm not particularly fond of answering questions with
> questions the
> > reality is that in order for anyone to answer questions like the
> very
> > general one you posted they'd need to know where it is you are
> trying to go
> > .
> >
> >
> >
> > If you've read Howard's book and that isn't in the direction you
> want to go
> > i.e. system design and testing then what direction do you want to
> go in ?
> >
> >
> >
> > Are you a visual type i.e. are you only interested in indicators
> and line
> > drawing capabilities etc ? or ?
> >
> >
> >
> > Fred
> >
> >
> >
> > _____
> >
> > From: amibroker@xxxxxxxxxxxxxxx
[mailto:amibroker@xxxxxxxxxxxxxxx]
> On Behalf
> > Of matrix10014
> > Sent: Thursday, August 28, 2008 11:09 AM
> > To: amibroker@xxxxxxxxxxxxxxx
> > Subject: [amibroker] Re: The best way to help newbies,
oldies, ...
> and
> > AmiBroker ...
> >
> >
> >
> > Brian,
> > Thank you for simply cutting to the chase.Until the AFL issue is
> > adequately addressed,a large percentage of us wil be caught in an
> > enedless data loop.
> >
> > Allan
> >
> > "What I am saying is that I think we are making it harder by not
> > admitting that it is a programmers program and just getting on
with
> > teaching AFL.
> >
> > I came to realise it is all about programming -
> > specifically AFL.
> >
> > So, if I do want to get on with it where do I go"
> >
> > >
> > >
> > > brian_z
> > >
> > >
> > >
> > >
> > > --- In amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
> ps.com,
> > "brian_z111" <brian_z111@> wrote:
> > > >
> > > > Herman,
> > > >
> > > > >I always figured that sticking with AFL would have provided
a
> > more
> > > > >continuous path for users to develop their programming
> > expertise.
> > > >
> > > > This is a new point, not really discussed much before, I
think.
> > > >
> > > > I really don't know how to put it in words but you are so
right.
> > > >
> > > > Tomasz should be proud of me because if I am a programmer at
> all
> > I
> > > am
> > > > an array programmer...... but sometimes I am left reaching
for
> > AFL?
> > > >
> > > > Perhaps there are conventions that people with 2 or more
> > > programming
> > > > languages automatically understand?
> > > >
> > > > Do I have to go and learn C++ as well.
> > > >
> > > > Should I need too?
> > > >
> > > > brian_z
> > > >
> > >
> >
> >
> >
> >
> > _____
> >
> > I am using the free version of SPAMfighter for private users.
> > It has removed 535 spam emails to date.
> > Paying users do not have this message in their emails.
> > Try SPAMfighter <http://www.spamfighter.com/len> for free now!
> >
>
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