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I don't disagree with what you are saying except that I didn't notice
anyone asking for this specific thing ASAP ... But we would like to
have it ... To not be able to do certain analysis or other analysis
without complicating things by overlaying what IMHO should protected
arrays relating to price and which TJ has stated previously are not
particularly good things to overlay regardless of how careful one
thinks one is being is somewhat painful. I understand the growing
pains software like this has but to me and to others as well I think
these are important issues. Having For/While/If/Else is an important
step which like all other enhancements we are appreciative of but to
some degree would be needed even less if one could do the kinds of
things we are suggesting. No one really wants to implement their own
versions of Standard Deviation or Linear Regression in order to
accomplish these kinds of things although if necessary we will.
--- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxx>
wrote:
> Fred,
> We can not have whatever comes easily in this forum in one night !!
> Some people say the reason they left SoftwareA [600USD] or
SoftwareB
> [>1000USD] and moved to amibroker [still <100USD] to solve all the
> unsolved right now.
> I really doubt if this request for all-variable is what they need.
> I come to this conclusion looking at the reaction to some recent
> codes I post here.
> Although they are pure AFL, without tricks or unknown techniques,
> they seem too difficult for many people.
> At the same time they ask more and more complicated functions ASAP.
> It is a contradiction in my opinion.
> It would be better to wait, Tomasz have a plan for amibroker
> evolution, it gives excellent support and satisfies a lot of users
> requests.
> The recent confusion with for/if/else is descriptive enough to put
> you in thoughts about how the users assimilate new [for amibroker]
> directions.
> Just some thoughts, nothing more, back to work now...
> DT
>
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Fred" <fctonetti@xxxx> wrote:
> > That's wonderful with EMA ~ AMA ... but there are a lot of other
> > functions where this either won't fly or is a royal pain in the
> butt.
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS"
> <TSOKAKIS@xxxx>
> > wrote:
> > > Example
> > > per=10+Cum(1)%10;
> > > Plot(EMA(C,per),"",7,1);
> > > will not function, since EMA does not accept variable per.
> > > But, you may see it [and use it] with
> > >
> > > per=10+Cum(1)%10;
> > > smooth=2/(per+1);
> > > W=AMA(C,smooth);
> > >
> > > Play a little with
> > > per=10+Cum(1)%10;
> > > smooth=2/(per+1);
> > > W=AMA(C,smooth);
> > > Plot(W,"",4,8);Plot(EMA(C,10),"",5,1);Plot(EMA(C,20),"",5,1);
> > > it is interesting.
> > > DT
> > > --- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS"
> > <TSOKAKIS@xxxx>
> > > wrote:
> > > > Example
> > > > per=10+Cum(1)%10;
> > > > Plot(EMA(C,per),"",7,1);
> > > > will not function, since EMA does not accept variable per.
> > > > But, you may see it [and use it] with
> > > >
> > > > per=10+Cum(1)%10;
> > > > smooth=2/(per+1);
> > > > W=AMA(C,smooth);
> > > >
> > > > Play a little with
> > > > per=10+Cum(1)%10;
> > > > smooth=2/(per+1);
> > > > W=AMA(C,smooth);
> > > > Plot(W,"",4,8);Plot(EMA(C,10),"",5,1);Plot(EMA(C,20),"",5,1);
> > > > it is interesting.
> > > > DT
> > > > --- In amibroker@xxxxxxxxxxxxxxx, "DIMITRIS TSOKAKIS"
> > > <TSOKAKIS@xxxx>
> > > > wrote:
> > > > > Do not ignore, for now, the analytic way.
> > > > > Macd is a difference of two EMAs.
> > > > > An MACD for Vol, 12,26 would be
> > > > > MACDvol=EMA(V,12)-EMA(V,26);
> > > > > You may also introduce variable EMA period [not available
now
> > in
> > > > the
> > > > > built-in EMA), using the
> > > > > AMA(Array,smooth)=EMA(Array,per) with smooth=2/(1+per).
> > > > > DT
> > > > > --- In amibroker@xxxxxxxxxxxxxxx, uenal.mutlu@xxxx wrote:
> > > > > > Hi CS, DT and all,
> > > > > >
> > > > > > I too would like dynamic (user modifyable) args to
> > > > > > internal functions. For example the MACD and SIGNAL
> > > > > > functions work only on the Close price. It would be a
> > > > > > plus if user could override the default Close array it
> > > internally
> > > > > uses.
> > > > > > The function prototypes then would look like:
> > > > > > MACD(fastperiod = 12, slowperiod = 26, sourcearray =
> Close);
> > > > > > SIGNAL(fastperiod = 12, slowperiod = 26, signalperiod =
> 9,
> > > > > sourcearray = Close);
> > > > > > (here the last param was added).
> > > > > >
> > > > > > then such things like the following would be possible:
> > > > > > MACD(12,26,C) > MACD(12,26,EMA(C, 9));
> > > > > > or you could create the MACD for volume etc... :-)
> > > > > >
> > > > > > UM
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "DIMITRIS TSOKAKIS" <TSOKAKIS@xxxx>
> > > > > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > > > > Sent: Thursday, April 17, 2003 2:01 PM
> > > > > > Subject: [amibroker] Re: AmiBroker 4.31.0 BETA Question
> > > > > >
> > > > > >
> > > > > > > CS,
> > > > > > > something must be more clear:
> > > > > > > Do you speak for a variable period for RSI(periods) or
> for
> > > the
> > > > > RSI of
> > > > > > > another function?
> > > > > > > When we write RSI(12), we mean RSI calculated on Close,
> > > > > periods=12.
> > > > > > > An example of variable period should be like
> > > > > > > per=10+cum(1)%10;
> > > > > > > W=RSI(per);
> > > > > > > It will not work, since built-in RSI() does not accept
> > > variable
> > > > > > > period.
> > > > > > > The second case is to apply the RSI transformation on
> > another
> > > > > > > function, say Stochastics.
> > > > > > > This is already included through the RSIA
(Array,periods)
> > > > > function,
> > > > > > > but still for a fixed period.
> > > > > > > It would be better to be more specific, which
improvement
> > do
> > > > you
> > > > > ask.
> > > > > > > DT
> > > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "CS" <csaxe@xxxx>
wrote:
> > > > > > > >
> > > > > > > > Since converting some of my systems to dynamic
> parameter
> > > > input,
> > > > > my
> > > > > > > success (profits) has increased dramatically.
> > > > > > > > Unfortunately, most people don't know the difference
> > > between
> > > > > > > dynamic (variable) and static (constant) parameter
inputs.
> > > > > > > > Simplistic Hint: Static- RSI(14); Dynamic- RSI(
> ATR
> > > > (3) );
> > > > > > > >
> > > > > > > > I have asked TJ to go back and re-work indicators and
> > > > functions
> > > > > to
> > > > > > > accept dynamic inputs, but he said that only three
other
> > > people
> > > > > had
> > > > > > > asked for the same thing, so it is low on his priority
> > list.
> > > > So,
> > > > > I
> > > > > > > have had to resort to manually coding each
> > indicator/function
> > > > in
> > > > > > > script, and script sucks. Error messages while
debugging
> > are
> > > so
> > > > > > > vague, that they are useless.
> > > > > > > > The recent inclusion of native AFL looping and flow
> > control
> > > > > will
> > > > > > > help.
> > > > > > > >
> > > > > > > > There are some functions that accept dynamic input
such
> > as
> > > > HHV,
> > > > > > > LLV, Sum, Ref, AMA, AMA2, WMA, DEMA, TEMA and MA.
> > > > > > > >
> > > > > > > > It would be nice if all new functions/indicators
> created
> > > > would
> > > > > > > accept dynamic inputs.
> > > > > > > >
> > > > > > > > -CS
> > > > > > > > ----- Original Message -----
> > > > > > > > From: Fred
> > > > > > > > To: amibroker@xxxxxxxxxxxxxxx
> > > > > > > > Sent: Wednesday, April 16, 2003 4:26 PM
> > > > > > > > Subject: [amibroker] Re: AmiBroker 4.31.0 BETA
> Question
> > > > > > > >
> > > > > > > >
> > > > > > > > I believe LinRegSlope takes as it's second argument
a
> > NON
> > > > > time
> > > > > > > > variant argument or a constant NOT an array like
for
> > > > example
> > > > > AMA
> > > > > > > > would. I don't know but I supect the code I put in
> my
> > > > > original
> > > > > > > post
> > > > > > > > won't work any way or if it has a chance of working
I
> > > > > wouldn't
> > > > > > > know
> > > > > > > > how to modify it so it does, maybe
> > > > > > > >
> > > > > > > > LRS = LinRegSlope(close[ i ], HilbertPeriod[ i ]);
> > > > > > >
> > > > > > >
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