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I think you can see know that POLLS are good at ramping up the feel
good barometer but fraught with design bias issues etc (did you
include (C,-5) which is backward compatible, distinguishes it from
array subscript and consistent with math convention ... fine for lazy
typers like me).
A forum discussion is good for clearing your thoughts, gauging the
range of user opinion and bringing up new ideas.
In future, ditch POLLING and stick to forum discussion.
--- In amibroker@xxxxxxxxxxxxxxx, "brian_z111" <brian_z111@xxx> wrote:
>
> 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
> >
> >
> >
> >
> >
> >
> >
> > > ------------------------------------
> >
> >
> >
> >
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> >
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> >
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> >
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> >
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> >
> >
> >
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> >
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> >
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> >
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>
------------------------------------
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