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Uhhh ... I wouldn't call that plain ... But in any case ...
To picture what happens below in the arrays let's assume C goes above
MA(C, 30) on bar 1 and under on bar 7 ...
If your Trend condition was for some reason SIGNAL oriented and you
wanted to know what state it was in then yes you could use Flip to
populate the rest of the two arrays i.e.
UpTrend = Cross(C, MA(C, 30)); // Or whatever
DnTrend = Cross(MA(C, 30), C); // Or whatever
The arrays for bars 1 through 9 would now look like:
UpTrend 100000000
DnTrend 000000100
UpTrend = Flip(UpTrend, DnTrend);
DnTrend = Flip(DnTrend, UpTrend);
The arrays for bars 1 through 9 would now look like:
UpTrend 111111000
DnTrend 000000111
You'd get the same as the above by writing the STATE oriented
statements ...
UpTrend = C > MA(C, 30);
DnTrend = C < MA(C, 30); // Or if you prefer DnTrend = Not UpTrend
With the above arrays in STATE orientation if you then for some
reason write:
UpTrend = ExRem(UpTrend, DnTrend);
DnTrend = ExRem(DnTrend, UpTrend);
Then the arrays are changed to signal orientation again i.e. ...
UpTrend 100000000
DnTrend 000000100
--- In amibroker@xxxxxxxxxxxxxxx, "Rakesh Sahgal" <rakeshsahgal@xxx>
wrote:
>
> So in plain English if I were to look for a correction in an
upswing [a] I
> would define the trend conditions , [b] use flip as you detailed
above to
> test for the trend condition i.e. uptrend or downtrend and [c]
finally look
> for a correction when buy=1 or sell=1? The idea is to go for the
first
> correction in the trend i.e. something like the wave 2 per Elliot
Wave
> parlance.
>
> R
>
> On 6/6/07, Fred <ftonetti@xxx> wrote:
> >
> > You understand loops, but not ExRem (Signal) & Flip (State) ?
> >
> > It would have been easy enough for you to come to your own
> > realization simply by looking at an exploration after using Flip
and
> > then again after using Flip ...
> >
> > In case you still don't understand,
> >
> > Buy = Flip(Buy, Sell);
> > Sell = Flip(Sell, Buy);
> >
> > ... would set all values in the buy array to 1 from each buy until
> > the next sell and all values in the sell array to 1 until the next
> > buy ...
> >
> > Buy = ExRem(Buy, Sell);
> > Sell = ExRem(Sell, Buy);
> >
> > ... would remove all but the original buy and sell in the
respective
> > arrays ...
> >
> > Now you can toss the loops and have your code run faster ...
> >
> > --- In amibroker@xxxxxxxxxxxxxxx, Grant Noble <gruntus@> wrote:
> > >
> > > As someone who struggled with ExRem I can understand the
confusion.
> > > I eventually abandoned it and defined all my signals via loop
code.
> > > The whole notion of state v. signal form is something that
could do
> > with a little more explanation
> > > in the user guide - not all of us have engineering
backgrounds.. G
> > >
> > > Tomasz Janeczko wrote:
> > > > Angelo,
> > > >
> > > > The purpose of ExRem is to convert from STATE form to SIGNAL
form.
> > > > The difference is as between
> > > >
> > > > Buy = Close > MA( Close, 24 );
> > > >
> > > > and
> > > >
> > > > Buy = Cross( Close, MA( Close, 24 ) );
> > > >
> > > > First is state form, second is signal form. As far as default
> > mode of backtesting is considered
> > > > there is no much difference AS LONG as you don't combine
multiple
> > conditions.
> > > >
> > > > But once you start using AND/OR it makes the difference.
> > > >
> > > > The other difference is when you are going to PLOT the chart
(or
> > arrows using PlotShapes).
> > > > First form will give you "level" while second form will give
> > you "pulse".
> > > >
> > > > Use Exploration and charts to see what I am talking about.
> > > >
> > > > Best regards,
> > > > Tomasz Janeczko
> > > > amibroker.com
> > > > ----- Original Message -----
> > > > From: "Angelo" <ima_cons@>
> > > > To: <amibroker@xxxxxxxxxxxxxxx>
> > > > Sent: Tuesday, June 05, 2007 10:46 AM
> > > > Subject: [amibroker] Re: once again, this AFL fights you every
> > step of the way. Sorry, this is a badl
> > > >
> > > >
> > > >> --- In amibroker@xxxxxxxxxxxxxxx, "Bob Jagow" <bjagow@>
wrote:
> > > >>> You confuse signal with Buy/Sell.
> > > >>>
> > > >>
> > > >> I surely do.
> > > >>
> > > >> That's why I came here asking if someone has the courtesy of
> > explaining
> > > >> when/why there's the need to remove a signal that won't
create
> > an
> > > >> actual Buy/Sell.
> > > >>
> > > >> If it is possble, otherwise life will be good all the same.
> > > >>
> > > >> Regards,
> > > >>
> > > >> Angelo.
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >> Please note that this group is for discussion between users
only.
> > > >>
> > > >> To get support from AmiBroker please send an e-mail directly
to
> > > >> SUPPORT {at} amibroker.com
> > > >>
> > > >> For NEW RELEASE ANNOUNCEMENTS and other news always check
DEVLOG:
> > > >> http://www.amibroker.com/devlog/
> > > >>
> > > >> For other support material please check also:
> > > >> http://www.amibroker.com/support.html
> > > >>
> > > >> Yahoo! Groups Links
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > > > Please note that this group is for discussion between users
only.
> > > >
> > > > To get support from AmiBroker please send an e-mail directly
to
> > > > SUPPORT {at} amibroker.com
> > > >
> > > > For NEW RELEASE ANNOUNCEMENTS and other news always check
DEVLOG:
> > > > http://www.amibroker.com/devlog/
> > > >
> > > > For other support material please check also:
> > > > http://www.amibroker.com/support.html
> > > >
> > > > Yahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> >
> >
> > Please note that this group is for discussion between users only.
> >
> > To get support from AmiBroker please send an e-mail directly to
> > SUPPORT {at} amibroker.com
> >
> > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> > http://www.amibroker.com/devlog/
> >
> > For other support material please check also:
> > http://www.amibroker.com/support.html
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
Please note that this group is for discussion between users only.
To get support from AmiBroker please send an e-mail directly to
SUPPORT {at} amibroker.com
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
For other support material please check also:
http://www.amibroker.com/support.html
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