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Fair enough and thanks for the tip.
My programming ignorance shows at times, perhaps a lot of the time :-)
--- In amibroker@xxxxxxxxxxxxxxx, Graham <kavemanperth@xxx> wrote:
>
> I think using the Ref should be kept just the way it is. I cannot
see
> how any alternative method would be less confusing to newbies.
>
> btw you can change
> P = (Ref(H,-1) + Ref(L,-1) + Ref(C,-1)) / 3;
> to
> P = Ref(H+L+C,-1) / 3;
> and thus reduce the amount of typing :)
>
> --
> Cheers
> Graham Kav
> AFL Writing Service
> http://www.aflwriting.com
>
>
>
> 2009/2/20 brian_z111 <brian_z111@xxx>:
> > Tomasz,
> >
> >> I have second thoughts as well, as it truly may create lots of
> >>confusion.
> >
> > No, don't start having doubts now ...you were correct in the first
> > place.
> >
> > The Ref() part of the function was always redundant and overkill
for
> > such a simple thing (it isn't even really a function is it?).
> >
> > Signed integers are NOT truly intuitive but actually just
> > subconscious habit .... it is in our minds from our school days
that
> > (-) means go left along the number line and (+) means go right
along
> > the number line.
> >
> > Keep to this worldwide (mathematical) convention and all will be
well
> > e.g.
> >
> > - in bar index we start at the first bar and go right 0,1,2,3 etc
> > - in referencing bars from today, we go left C(-5) or right C
(+5) ...
> > except that the plus sign is also redundant.
> >
> >
> > I commend you on your attention to detail ... many small
improvements
> > are just as important as one big one.
> >
> > The only thing is you are far nicer than me ... I wouldn't
poll ...
> > the only 'people' I would ask would be my muses, simply because
their
> > error rate is so low (usually caused by the fact I don't listen).
> >
> > Many times in the past I thought the Ref() was a waste of my
typing
> > time and very annoying.
> >
> > Last night I wrote some code, at zboard.wordpress.com, to help the
> > community understand Pivots (many seem to be making them
> > unnecessarily difficult),
> >
> >
> > It included:
> >
> > P = (Ref(H,-1) + Ref(L,-1) + Ref(C,-1)) / 3;
> >
> > ... enough said.
> >
> > Then again, maybe not.
> >
> > Please give me:
> >
> > P = H(-1) + L(-1) + C(-1);
> >
> > Actually parenthesis or [] doesn't really matter because it is
> > dependent on context and it is normal for 'programmers' to be
> > particular with syntax (afterall it does change from lanuage to
> > language and we have to mentally handle that fact).... you woul be
> > better not to concede to soft appeals for syntax preferences
because
> > any developer of language is soon going to run out of special
> > characters if ... technically speaking contextual use of [] is
> > efficient and an acceptable way to do it (even for me!)
> >
> > People don't like change ... in the first place I only learnt Ref
()
> > from you.
> >
> > Also, the problems created by look forward oppurtunities are
highly
> > over-rated ... it is sometimes useful to look forward (for what if
> > scenarios or projecting indicators into the future).
> >
> > We can handle look forward issues ourselves (if not better get a
real
> > job).
> >
> >
> > IMO you would be better off maintaining consistency of number line
> > signed directions everywhere e.g. LLV(array,-5) is the lookback
for 5
> > periods and LLV(array,5) is the look forward 5 periods.
> >
> > Once again it is up to us when and how to use it ... a look
forward
> > warning in the function manual is quite adequate.
> >
> >
> >
> > Two other small details .... just as annoying:
> >
> > - search inside charts/formulas looking for the one you left there
> > sometime last year (what did I call it?)... once you get a lot of
> > them you can't keep track of them all, even with folders (syntax
> > exhaustion leads us to name AFL files all sorts of wierd, non-
> > intuitive things).
> >
> > - auto completion of typing in FormulaEditor (how about macro for
> > custom auto complete?)... typinc the same thing over and over
makes
> > me cranky.
> >
> > Also I apologise that I don't use the feedback center ... I
empathise
> > with you but it is too much like work for me ... I accept my
informal
> > suggestions get lost in the noise ... at least if I make a major
> > suggestion I put it into a semi-formal document that you can pick
up
> > and file (on the rare occasion that you like the idea).
> >
> > Also, if I file at the feedback center only a few people see
it ...
> > if I run a short campaign here then the forum has the chance to
> > consider the idea and action it privately if you don't pick it
up ...
> > IMO that is added value to the FC.
> >
> >
> > I think it is OK to do that as long as the campaign is short and
then
> > brought to a close (once and for all) or moved elsewhere (like the
> > zboard for stats for traders).g
> >
> > BTW I like a lot of your recent additions to AB ... chart linking
is
> > great .. AddSummaryRows is a step in the right direction ...
> > DaysSince1900 is a very important addition .. lots of other good
> > things (sometimes the little things leverage a lot of action).
> >
> > I often forget to post and thank you for your successes.
> >
> > brian_z
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "Tomasz Janeczko" <groups@>
> > wrote:
> >>
> >> Re: [amibroker] A shorter syntax to reference past elements of
> > arrayHerman,
> >>
> >> You are right that it maight be confusing, therefore I was
thinking
> > about using this short form only to reference past
> >> (as it is most common scenario, considering the fact that we all
> > the time attempt *not* to look into the future).
> >>
> >> The whole story is just to make common expressions like C - Ref(
> > C, -1 ) shorter, like this: C - C(1)
> >> but I have second thoughts as well, as it truly may create lots
of
> > confusion.
> >>
> >> Best regards,
> >> Tomasz Janeczko
> >> amibroker.com
> >> ----- Original Message -----
> >> From: Herman
> >> To: Tomasz Janeczko
> >> Sent: Thursday, February 19, 2009 5:20 PM
> >> Subject: Re: [amibroker] A shorter syntax to reference past
> > elements of array
> >>
> >>
> >> Sorry , but imo the new forms are critic and counter intuitive.
> >>
> >>
> >>
> >>
> >> C(5) looks back 5 bars.... what would looking forward look
like? C
> > (-5)?
> >>
> >>
> >>
> >>
> >> imo, very confusing. I can't help but wonder what made this
idea
> > surface :-))
> >>
> >>
> >>
> >>
> >> herman
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> Thursday, February 19, 2009, 11:08:25 AM, you wrote:
> >>
> >>
> >>
> >>
> >> > Hello,
> >>
> >>
> >>
> >>
> >> > As a convenience feature I was contemplating for some time to
> > allow
> >>
> >> > shorter syntax to very common operation of referring to past
> > elements of the array.
> >>
> >> > As you now current syntax to refer to past is:
> >>
> >>
> >>
> >>
> >> > Ref( array, -bars )
> >>
> >>
> >>
> >>
> >> > So close five bars back is Ref( C, -5 )
> >>
> >>
> >>
> >>
> >> > I don't have any technical problem with adding new
> >>
> >> > operator that will make it shorter,
> >>
> >> > but I am wondering about the most preferrable "form",
> >>
> >> > that is easy to use and does not create confusion.
> >>
> >>
> >>
> >>
> >> > So I would like to ask you which
> >>
> >> > "short form" would you prefer.
> >>
> >> > - C@x
> >>
> >> > - C#5
> >>
> >> > - C(5)
> >>
> >> > - I don't like the idea at all
> >>
> >>
> >>
> >>
> >> > Please use this poll to vote:
> >>
> >> > http://finance.groups.yahoo.com/group/amibroker/surveys?
> > id=2828485
> >>
> >>
> >>
> >>
> >> > Thank you.
> >>
> >>
> >>
> >>
> >> > Best regards,
> >>
> >> > Tomasz Janeczko
> >>
> >> > amibroker.com
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> > ------------------------------------
> >>
> >>
> >>
> >>
> >> > **** IMPORTANT PLEASE READ ****
> >>
> >> > This group is for the discussion between users only.
> >>
> >> > This is *NOT* technical support channel.
> >>
> >>
> >>
> >>
> >> > TO GET TECHNICAL SUPPORT send an e-mail directly to
> >>
> >> > SUPPORT {at} amibroker.com
> >>
> >>
> >>
> >>
> >> > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> >>
> >> > http://www.amibroker.com/feedback/
> >>
> >> > (submissions sent via other channels won't be considered)
> >>
> >>
> >>
> >>
> >> > For NEW RELEASE ANNOUNCEMENTS and other news always check
> > DEVLOG:
> >>
> >> > http://www.amibroker.com/devlog/
> >>
> >>
> >>
> >>
> >> > Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >> > http://groups.yahoo.com/group/amibroker/
> >>
> >>
> >>
> >>
> >> > Individual Email | Traditional
> >>
> >>
> >>
> >>
> >> > http://groups.yahoo.com/group/amibroker/join
> >>
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> >>
> >>
> >>
> >>
> >> > mailto:amibroker-digest@xxxxxxxxxxxxxxx
> >>
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> >>
> >>
> >>
> >>
> >> > amibroker-unsubscribe@xxxxxxxxxxxxxxx
> >>
> >>
> >>
> >>
> >> > http://docs.yahoo.com/info/terms/
> >>
> >
> >
> >
> >
> > ------------------------------------
> >
> > **** IMPORTANT PLEASE READ ****
> > This group is for the discussion between users only.
> > This is *NOT* technical support channel.
> >
> > TO GET TECHNICAL SUPPORT send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> > http://www.amibroker.com/feedback/
> > (submissions sent via other channels won't be considered)
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
------------------------------------
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